KR102488613B1 - Monitoring and alarm system of biological life inflow prediction for plant - Google Patents

Abstract

The present invention relates to a predictive monitoring and warning system for inflow of marine organisms in a power plant, comprising: a water intake structure installed in a power plant; water intake pumps that introduce seawater into the power plant's cooling system; a water level gauge installed on the intake structure and measuring the level of seawater; a net installed in front of the water intake pump and installed in the ocean; A rope capable of fixing the net to a designated point; A tensile force measuring instrument capable of measuring the tensile force of the rope; It is characterized in that it comprises a; transmitting unit capable of transmitting the tension data of the rope measured by the tension meter.

Description

{Monitoring and alarm system of biological life inflow prediction for plant}

The present invention relates to a predictive monitoring and warning system for the inflow of marine organisms in a power plant, and more particularly, to link analysis of data measured by a water level gauge installed in a water intake structure of a power plant and a tension meter capable of measuring tension in a rope of a net. It relates to a predictive monitoring and warning system for inflow of marine organisms in power plants that can minimize the impact of inflow of marine organisms by doing so.

Nuclear power plants produce electricity using heat generated from nuclear fission, and nuclear power plants are equipped with a cooling system for cooling heat generated during nuclear fission of a nuclear reactor.

Cooling water used in the cooling system of nuclear power plants is seawater, and nuclear power plants are installed near the coast to stably supply seawater to nuclear power plants.

A cooling water intake pump is installed in a nuclear power plant, and seawater is introduced through the cooling water intake pump. When seawater is introduced through the cooling water intake pump, if the level of seawater is too low, there is a risk that seawater cannot be smoothly supplied through the cooling water intake pump. Therefore, the intake water level of the cooling water intake pump is set in advance, and when the water level is lower than the preset level, an alarm is sounded for each observed water level to prepare for this.

Meanwhile, among nuclear power plants that use seawater as cooling water, the cooling water intake system of a nuclear power plant adopting a surface intake method is greatly affected by the inflow of marine organisms such as jellyfish, shrimp, and fish to the front of the cooling water intake structure.

If marine organisms are rapidly introduced into the water intake, the power of the reactor may be reduced, and accidents such as turbine and generator shutdown may occur. Therefore, a net is installed in front of the water intake to block the inflow of marine organisms.

Although the inflow of marine life can be blocked through the net, there is a problem in that the water level near the cooling water intake pump changes rapidly due to the marine life gathered in the net.

A water level gauge in a nuclear power plant measures the water level near a cooling water intake pump while being installed in a water intake structure. However, it is difficult to predict in advance a rapid change in water level due to the inflow of marine organisms through the water level gauge.

Since it is difficult to predict in advance a rapid change in water level due to the inflow of marine life through the water level gauge, it is difficult to cope with a rapid decrease in water level due to the inflow of marine life when only the water level gauge is used.

Specifically, even if the water level is recognized through the water level gauge, the response time is delayed due to the sudden water level drop, resulting in a shutdown accident of the power plant.

In order to prevent this, the operator of the nuclear power plant observes the situation around the cooling water intake pump with the naked eye. It is difficult to cope with the water level drop.

The present invention is intended to solve the above problems, and more specifically, the inflow of marine life by linking and analyzing data measured by a water level gauge installed in a water intake structure of a power plant and a tensile force measuring instrument capable of measuring the tensile force on a rope of a net. It is about a predictive monitoring and warning system for inflow of marine organisms in power plants that can minimize the impact.

A system for predicting and warning the inflow of marine organisms from a power plant according to the present invention to solve the above problems is a system for predicting and warning the inflow of marine organisms into a power plant, comprising: a water intake structure installed in the power plant; water intake pumps that introduce seawater into the power plant's cooling system; a water level gauge installed on the intake structure and measuring the level of seawater; a net installed in front of the water intake pump and installed in the ocean; A rope capable of fixing the net to a designated point; A tensile force measuring instrument capable of measuring the tensile force of the rope; It is characterized in that it comprises a; transmitting unit capable of transmitting the tension data of the rope measured by the tension meter.

In order to solve the above problems, the marine life inflow predictive monitoring and warning system of the power plant of the present invention further includes a notification unit capable of generating a warning signal to the outside, and a control unit connected to the notification unit, wherein the control unit, The transmission unit receives the tension data of the rope, and the control unit may generate a warning signal to the outside through the notification unit when the tension data of the rope is greater than a specified value.

The control unit of the marine life inflow prediction monitoring and warning system of the power plant of the present invention for solving the above problems is configured to receive seawater level data from the water level gauge, and the control unit, if the seawater level data is smaller than a specified value, A warning signal may be generated externally through the notification unit.

The control unit of the marine life inflow prediction monitoring and warning system of the power plant of the present invention to solve the above problems, even if the water level data measured from the water level gauge is greater than the specified value, the rope measured from the tension gauge When the tensile force data is greater than a specified value, a warning signal may be generated to the outside through the notification unit.

In order to solve the above problems, the tensile force measuring device of the marine life inflow predictive monitoring and warning system of the power plant of the present invention may be provided with a waterproof function and an anti-corrosion function.

A bar screen capable of filtering floating matter may be installed between the water intake pump and the net of the system for predicting and monitoring the influx of marine organisms of the power plant according to the present invention to solve the above problems.

A rotating screen capable of filtering marine life may be installed between the water intake pump and the bar screen of the system for predicting and monitoring the influx of marine life of the power plant of the present invention to solve the above problems.

The present invention relates to the effect of inflow of marine organisms into a power plant by analyzing data measured by a water level gauge installed on a water intake structure of a power plant, a water level gauge installed on a water intake structure of a power plant, and a tension gauge capable of measuring tension on a rope of a net. There is an advantage in preventing in advance the shutdown or damage of facilities of the power plant due to the inflow of a large amount of marine organisms by monitoring the

In addition, the present invention monitors the impact of marine organisms entering the power plant by linking and analyzing data measured through a water level gauge installed in a water intake structure of a power plant and a tensile force measuring device capable of measuring the tensile force on a rope of a net, thereby monitoring the effect of marine organisms It has the advantage of being able to prepare for a power plant safety shutdown accident in advance by detecting a large influx in advance.

1 is a view showing that a water intake structure, a water intake pump, a water level gauge, and a net are installed in a power plant according to an embodiment of the present invention.
2 is a view showing blocking the inflow of marine life through a net according to an embodiment of the present invention.
3 is a view showing that a net is fixed by connecting a rope to a breakwater according to an embodiment of the present invention.
4 is a view showing a water intake structure, a water intake pump, a water level gauge, a net, and a tension gauge installed in a power plant according to an embodiment of the present invention.
5 is a diagram illustrating a control unit and a notification unit operated through a water level gauge and a tension gauge according to an embodiment of the present invention.
6 is a diagram illustrating an operation process of a control unit and a notification unit according to an embodiment of the present invention.

This specification clarifies the scope of the present invention, explains the principles of the present invention, and discloses embodiments so that those skilled in the art can practice the present invention. The disclosed embodiments may be implemented in various forms.

Expressions such as “include” or “may include” that may be used in various embodiments of the present invention indicate the existence of a function, operation, or component that has been disclosed, and may include one or more additional functions, operations, or components. components, etc. are not limited. In addition, in various embodiments of the present invention, terms such as "comprise" or "having" are intended to designate that there are features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, It should be understood that it does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

When an element is referred to as being "connected or coupled" to another element, the element may be directly connected or coupled to the other element, but there is a gap between the element and the other element. It should be understood that other new components may exist in On the other hand, when an element is referred to as being “directly connected” or “directly coupled” to another element, it will be understood that no new element exists between the element and the other element. should be able to

Terms such as first and second used in this specification may be used to describe various components, but the components should not be limited by the terms. Terms are only used to distinguish one component from another.

The present invention relates to a marine life inflow prediction monitoring and warning system in a power plant, and relates to a water level gauge installed in a water intake structure of a power plant and a tension gauge capable of measuring tension in a rope of a net. It relates to a predictive monitoring and warning system for influx of marine organisms in power plants that can minimize the impact of inflow.

The marine life inflow prediction monitoring and warning system of a power plant according to an embodiment of the present invention can be applied to a nuclear power plant, but is not limited thereto, and can also be applied to a power plant using seawater as cooling water. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Marine life inflow prediction monitoring and warning system of a power plant according to an embodiment of the present invention includes a water intake structure 110, a water intake pump 120, a water level gauge 130, a net 140, a rope 150, and a tension gauge 160. , and includes a transmitter 170.

Referring to FIGS. 1 and 2 , the water intake structure 110 may be installed in a power plant and may include various structures for introducing seawater into a power plant in order to use seawater as cooling water of the power plant.

The water intake pump 120 is a pump capable of introducing seawater into the cooling system of the power plant, and seawater can flow into the cooling system of the power plant through the water intake pump 120 . The water intake pump 120 may be composed of various types of pumps as long as they can introduce seawater into the power plant.

The water intake pump 120 may be installed inside seawater, and seawater introduced through the water intake pump 120 may be used as cooling water of a power plant.

The water level gauge 130 is installed on the water intake structure 110 and can measure the water level. The water level gauge 130 can measure the water level near the water intake pump 120, and the water level gauge 130 can be composed of various types of water level gauges as long as they can measure the water level.

The net 140 is installed on the front of the water intake pump 120 and can be installed in the ocean. Referring to FIG. 2 , as the net 140 is installed in front of the water intake pump 120 , it is possible to block marine organisms 10 from entering the water intake pump 120 .

The rope 150 can fix the net 140 to a designated point, and the net 140 can be fixed through the rope 150 . 3, the designated point may be the breakwater 20, and the breakwater 20 and the net 140 are connected through the rope 150 so that the net 140 is connected to the water intake pump ( 120) can be installed on the front.

The designated point is not limited to the breakwater 20, and may be various points as long as the point at which the net 140 can be fixed through the rope 150.

Referring to FIGS. 3 and 4 , the tensile force meter 160 can measure the tensile force of the rope 150 . The tensile force measuring instrument 160 may be installed at various points if it can measure the tensile force of the rope 150, and the tensile force measuring instrument between the rope 150 and the net 140 as shown in FIGS. 3 and 4 (160) may be installed.

According to an embodiment of the present invention, since the tensile force gauge 160 can be installed near seawater or in seawater, it may be provided with a waterproof function and an anticorrosive function.

The transmitting unit 170 may transmit tensile force data of the rope 150 measured by the tensile force measuring instrument 160 . The transmitter 170 may be installed in various locations if it can transmit the tensile data of the rope 150 measured by the tensile force meter 160 .

According to an embodiment of the present invention, the transmission unit 170 may be installed inside the tensile force measuring instrument 160, and the transmitting unit 170 is connected to the tensile force measuring instrument 160 and is external to the tensile force measuring instrument 160. may be installed on

The system for predicting and monitoring the influx of marine organisms in a power plant according to an embodiment of the present invention may further include a control unit 180 and a notification unit 190. The notification unit 190 can generate a warning signal to the outside and is connected to the control unit 180 .

The notification unit 190 receives a signal from the control unit 180 and generates a warning signal to the outside, and the warning signal generated by the notification unit 190 may be a sound or light. However, the warning signal generated by the notification unit 190 is not limited thereto, and may be various signals as long as the warning message can be delivered to the outside.

The controller 180 is capable of receiving seawater level data from the water level gauge 130, and when the seawater level data is smaller than a designated value, the controller 180 sends the information to the outside through the notification unit 190. A warning signal may be generated.

Here, the designated value may be a water level at which the intake pump 120 can intake water. The designated value may be changed according to the surrounding conditions of the power plant, the condition of the sea, and the standard of the water intake pump 120, and may be a predetermined value.

Referring to FIG. 1 , when seawater is introduced through the intake pump 120, if the level of seawater is too low, there is a risk that seawater may not be smoothly supplied into the power plant through the intake pump 120.

Therefore, when the water intake possible water level of the water intake pump 120 is preset (designated value) and the water level measured by the water level gauge 130 is lower than the preset water level (designated value), the control unit 180 and the It is possible to prepare for this by sounding an alarm for each observation level through the notification unit 190 .

However, when only the water level gauge 130 is used, it is difficult to accurately predict the change in seawater level. As shown in FIG. 2 , when many marine organisms 10 are gathered in the net 140 , there is a problem in that the water level near the water intake pump 120 is rapidly changed by the marine organisms 10 .

When the water level near the water intake pump 120 is rapidly changed by the marine life 10, the water level gauge 130 measures the drop in water level and transmits a signal to the control unit 180 and the notification unit 190. Even if it does, the response time is delayed due to the rapid drop in water level, which may cause a shutdown accident of the power plant.

In order to solve this problem, the predictive monitoring and warning system for inflow of marine organisms of a power plant according to an embodiment of the present invention can use the tensile force measuring instrument 160 and the water level gauge 130 at the same time.

Referring to FIG. 5 , the control unit 180 receives a signal about the drop in water level from the water level gauge 130 and generates a warning signal to the notification unit 190, and at the same time, the control unit 180 transmits a signal to the transmission unit 170 By receiving the tensile force data of the rope 150 from, when the tensile force data of the rope 150 is greater than a designated value, a warning signal can be generated to the outside through the notification unit 190.

If the tensile force of the rope 150 measured by the tensile force measuring instrument 160 is greater than the designated value, it indicates that a large amount of marine organisms 10 are introduced into the net 140 . When a large amount of marine life 10 flows into the net 140, a rapid water level change may occur near the water intake pump 120.

The control unit 180 uses the data of the tensile force meter 160 to prevent a sudden drop in water level by the marine life 10, and the control unit 180 uses the data of the tensile force meter 160 even if the water level does not decrease. When the tensile force value of the rope 150 measured in 160) is higher than the designated value, a warning signal can be generated to the outside.

That is, referring to FIG. 6, the control unit 180 generates a warning signal to the outside through the notification unit 190 when the water level data measured by the water level gauge 130 is smaller than a designated value, and at the same time, Even if the seawater level data measured by the water level gauge 130 is greater than the designated value, if the tensile force data of the rope 150 measured by the tensile force measuring instrument 160 is greater than the designated value, the notification unit 190 reports the external data. can generate a warning signal.

As described above, the marine life inflow predictive monitoring and warning system of the power plant according to the embodiment of the present invention uses the water level gauge 130, the tension gauge 160 and the transmitter 170, so that the marine life 10 This is to be able to cope with the sudden change in water level caused by the inflow of water in advance.

Here, the designated value may be a tension value of the rope 150 at which a rapid drop in water level may occur near the water intake pump 120 by the marine life 10 . The designated value may be changed according to the surrounding conditions of the power plant, the condition of the sea, the specifications of the water intake pump 120, and the specifications of the rope 150 and the net 140, and may be a predetermined value.

The control unit 180 may be installed inside a power plant, and the control unit 180 may be installed in a main control room of a power plant. However, the place where the control unit 180 is installed is not limited thereto, and a warning signal can be generated externally through the notification unit 190 while receiving signals from the water level gauge 130 and the transmission unit 170. If there is, the controller 180 may be installed at various points.

Referring to FIGS. 1 and 4 , the system for predicting and monitoring the influx of marine life in a power plant according to an embodiment of the present invention may further include a bar screen 141 and a rotating screen 142 .

The marine life inflow prediction monitoring and warning system of a power plant according to an embodiment of the present invention can complement the bar screen 141 and the rotation screen 142 facilities, and the bar screen 141 is the water intake pump ( 120) and the mesh 140, it is installed between them, and can filter floating matters. The rotating screen 142 is installed between the water intake pump 120 and the bar screen 141, and can filter marine organisms.

Among nuclear power plants that use seawater as cooling water, the cooling water intake system of nuclear power plants adopting the surface water intake method can be greatly affected by the inflow of marine organisms such as jellyfish, shrimp, and fish to the front of the water intake pump 120. .

If marine organisms rapidly flow into the water intake pump 120, an accident such as a reduction in reactor output or a shutdown of a turbine or generator may occur. Therefore, a net 140 is installed in front of the water intake pump 120 to block the inflow of marine organisms.

In the marine life inflow prediction monitoring and warning system of a power plant according to an embodiment of the present invention, the bar screen 141 and the rotating screen 142 are installed together with the net 140, so that the water intake pump 120 It is possible to effectively block the inflow of marine organisms.

The above-described marine organism inflow predictive monitoring and warning system of a power plant according to an embodiment of the present invention has the following effects.

Conventionally, based on only visual observations of power plant operators and water level observation data, blockage of the water intake due to the inflow of marine organisms or rapid decrease in water level due to the inflow of marine organisms has been dealt with.

However, through this method, it is difficult to detect in advance the prognosis of the mass influx of marine organisms, and thus it is difficult to efficiently cope with the blockage of the water intake due to the influx of marine organisms or the rapid decrease in water level due to the inflow of marine organisms.

In addition, after predicting signs of mass influx of marine organisms based only on the power plant operator's visual observation and water level observation data, it is possible to prevent damage to power plant facilities in advance due to insufficient response time to cope with rapid water level changes. There are problems that are difficult to do.

However, the marine life inflow prediction monitoring and warning system of a power plant according to an embodiment of the present invention links and analyzes data measured through a water level gauge installed in a water intake structure of a power plant and a tension gauge capable of measuring tension on a rope of a net. There is an advantage in preventing in advance the shutdown or damage of facilities of the power plant due to the inflow of a large amount of marine organisms by monitoring the influence of the inflow of marine organisms into the power plant.

In addition, the predictive monitoring and warning system for inflow of marine life in a power plant according to an embodiment of the present invention analyzes data measured through a water level gauge installed in a water intake structure of a power plant and a tension meter capable of measuring tension in a rope of a net. It has the advantage of being able to prepare for a power plant safety shutdown accident in advance by detecting a large amount of marine life in advance by monitoring the influx of marine organisms into the power plant.

In addition, the predictive monitoring and warning system for inflow of marine organisms in a power plant according to an embodiment of the present invention can prepare for a safe power plant shutdown accident in advance by detecting the prognosis of a large inflow of marine organisms before a safety accident occurs in terms of power plant operation. There is an advantage that can contribute to improving the safety of power plants.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but this is merely exemplary, and those skilled in the art will understand that various modifications and variations of the embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

110 ... water intake structure 120 ... water intake pump
130 ... water level gauge 140 ... mesh
141... bar screen 142... rotary screen
150 ... rope 160 ... tensile force gauge
170 ... transmission unit 180 ... control unit
190 ... Notification

Claims (7)

In a system for predicting and warning the inflow of marine life into a power plant,
water intake structures installed in power plants;
water intake pumps that introduce seawater into the power plant's cooling system;
a water level gauge installed on the intake structure and measuring the level of seawater;
a net installed in front of the water intake pump and installed in the ocean;
A rope capable of fixing the net to a designated point;
A tensile force measuring instrument capable of measuring the tensile force of the rope;
A transmitter capable of transmitting the tension data of the rope measured by the tension meter; includes,
Further comprising a notification unit capable of generating a warning signal to the outside, and a control unit connected to the notification unit,
The controller receives the tension data of the rope from the transmitter,
The control unit generates a warning signal to the outside through the notification unit when the tension data of the rope is greater than a specified value,
The control unit receives water level data of seawater from the water level gauge,
The control unit generates a warning signal to the outside through the notification unit when the water level data of the seawater is less than a specified value,
The control unit,
Even if the water level data measured from the water level gauge is greater than the specified value,
Marine life inflow predictive monitoring and warning system of power plant, characterized in that for generating a warning signal to the outside through the notification unit when the tension data of the rope measured from the tension meter is greater than the specified value. delete delete delete According to claim 1,
The tensile force meter is a marine life inflow predictive monitoring and warning system of a power plant, characterized in that it is provided with a waterproof function and an anticorrosion function.

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