KR20130120111A - Apparatus and method for measuring chlorine concentration - Google Patents

Abstract

An apparatus and a method for measuring chlorine concentration are provided. The apparatus for measuring chlorine concentration comprises a chlorine concentration measuring device which is provided to be able to measure chlorine concentration of a target object and is connected to supply line of the target object; and a temperature controlling unit which is provided to control temperature of the target object on the target object supply line. According to the present invention, the temperature of sea water, chlorine processed fresh water, or water can be controlled to be the optimal temperature environment suitable for measuring the temperature of sea water or water when the chlorine concentration of sea water, chlorine processed fresh water, or top water, specially the sea water flowed in or out from ballast tank of the ship is measured so that chlorine concentration can be rapidly and accurately measured based on reliability regardless of the temperature and a post-process such as ship management which is based on chlorine concentration measurement can be smoothly improved.

Description

Apparatus and Method for Measuring Chlorine Concentration

The present invention relates to an apparatus and a method for measuring chlorine concentration, and more particularly, in the case of measuring the chlorine concentration of seawater, chlorine-treated fresh water or water, in particular, the seawater flowing into or out of a ballast tank of a ship, By controlling the temperature to the optimum temperature environment for measurement, the chlorine concentration can be measured quickly and precisely based on the reliability regardless of the temperature, thereby smoothing the post-process based on the measurement of the chlorine concentration such as ship operation. The present invention relates to a chlorine concentration measuring apparatus and method.

When the vessel enters the port or ships the shipment, the ballast tank of the vessel introduces seawater or discharges stored seawater to the sea.

However, the discharge of seawater stored in the ballast tank of such ships is required to measure the chlorine concentration contained in the seawater, which is applied to marine life when excessive chlorine input exceeds the prescribed value for the sterilization (purification) of seawater. This can cause damage or cause environmental pollution.

On the other hand, although not shown in a separate drawing, a method for measuring the concentration of chlorine contained in the seawater of the existing ballast tank, for example, using a total residual chlorine analyzer (Total Residual Chlorine Analyzer).

For example, in order to measure the concentration of residual chlorine in the sampled seawater, that is, the seawater sampled in the ballast tank, a certain amount of reagent is added to the sampled seawater.

At this time, the chlorine concentration is analyzed by measuring the change of color (red) that changes according to the concentration of chlorine remaining in the seawater, and at least 70 seconds after the reagent is added, the chlorine concentration may be analyzed.

Therefore, it takes a considerable time to analyze the chlorine concentration of the seawater of many ballast tanks provided in the vessel, especially in the case of large vessels, which is a factor that delays the operation of the vessel when entering and departing the vessel.

On the other hand, in order to solve the delay problem caused by the addition of the reagent, for example, known chlorine concentration sensor (Amperometric Potentiostatic Three-Electrode System Chlorine Sensor) may be used.

However, when using such a known chlorine concentration sensor, it is affected by the temperature environment of the seawater. For example, when the temperature of seawater is 5 ° C. or higher, it is possible to measure normal and rapid chlorine concentrations, and it is also preferable in terms of securing measurement reliability. Therefore, in the case of known chlorine concentration measurement sensor, there was a problem that the measurement constraints depend on the temperature of the sea water.

For example, when the temperature of the sampled seawater is 5 degrees C or less, the measurement sensitivity of the sensor will fall remarkably, the measurement precision will fall, the response time will also be slow, and there existed a limit in the measurement reliability and rapid measurement generally.

Therefore, in order to use the chlorine concentration sensor normally, there is a secondary difficulty in controlling the seawater temperature to a temperature suitable for the measurement, which means that the chlorine concentration of seawater or water is measured, in particular, the chlorine in the seawater of the ballast tanks. It was difficult to measure concentrations quickly in a normal and reliable environment.

Accordingly, the present invention has been made in order to solve the above-mentioned conventional problems, the object of the present invention is to determine the concentration of chlorine in the water, constant, treated water or seawater, in particular, when measuring the chlorine concentration of the seawater flowing into or out of the ballast tank of the ship. An object of the present invention is to provide a chlorine concentration measuring apparatus and method for controlling the temperature to an optimum temperature environment suitable for measurement, thereby enabling a rapid and precise measurement of chlorine concentration regardless of temperature.

In another aspect, the present invention provides an apparatus and method for measuring chlorine concentration, which makes it possible to more quickly implement post-processes, such as ship operation, etc., on which measurement results that provide fast and reliable chlorine concentration are based. Is in.

As a technical aspect for achieving the above object, the present invention provides a chlorine concentration measuring unit that is provided to enable the measurement of the chlorine concentration of the object is connected to the object supply line; And

An object temperature controller provided to control the temperature of the object on the object supply line;

It provides a chlorine concentration measuring device configured to include.

Preferably, the chlorine concentration measuring unit, measuring unit housing that the object supply line is connected; And

A chlorine concentration measuring sensor provided in the measuring unit housing;

It is configured to include, the object is to be discharged through the discharge line provided in the housing.

More preferably, the object temperature control unit, the temperature control line associated with the object supply line; And

Heating means surrounded by or drawn into the outside of the temperature control line;

As shown in FIG.

In this case, the temperature control line may be provided as a tube of resin or stainless, and the heating means may be provided as a heating coil wound around the tube.

Preferably, the tube is wound in a plurality of layers or curved to be provided to facilitate temperature control of the object.

More preferably, the temperature control line is provided as a stainless pipe, and the heating means is provided as a heating rod that is drawn into the stainless pipe.

Preferably, the chlorine concentration measuring sensor of the chlorine concentration measuring unit is associated with a device control unit associated with at least one temperature sensor provided in the housing, the heating means is associated with a temperature control unit associated with the device control unit.

In this case, the object may be provided as one of seawater, water, treated water and a constant extracted from one of the vessel ballast tank, pipeline, storage tank and structure.

In another aspect, the present invention, the temperature control step of measuring the temperature of the object to control the temperature above the set temperature if lower than the set temperature; And

A chlorine concentration measuring step of measuring the chlorine concentration using the chlorine concentration measuring sensor of the object whose temperature is controlled;

It provides a chlorine concentration measurement method comprising a.

Preferably, the object is provided as one of seawater, water, treated water and a constant extracted from one of the vessel ballast tank, pipeline, storage tank and structure, the set temperature may be at least 5 ℃.

According to the chlorine concentration measuring apparatus and method of the present invention as described above, when measuring the chlorine concentration of water such as seawater or fresh water constant, in particular the seawater entering and entering the ballast tank of the vessel, it is suitable for measuring the temperature of seawater or water ( To control it quickly to the optimum temperature.

Accordingly, the present invention enables precise measurement in the state of securing the chlorine concentration rapidly and ensuring the measurement reliability irrespective of the temperature of sea water or water, and ultimately further the operation of a post-process such as a vessel based on the chlorine concentration measurement value. It is to make it possible to perform quickly.

Figure 1 is an overall configuration showing the overall configuration of the chlorine concentration measuring apparatus according to the present invention
Figure 2 is a plan view showing a temperature control unit of the present invention device
3 is a cross-sectional view illustrating a portion 'A' of the temperature controller of FIG. 2.
4 is a plan view showing another temperature control unit of the present invention apparatus;
FIG. 5 is a cross-sectional view illustrating a portion 'B' of FIG. 4.
6 is a plan view illustrating another form of temperature control unit;

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

First, Figure 1 shows the overall configuration of the chlorine concentration measuring apparatus 1 according to the present invention.

In the following embodiment, however, the object to which the chlorine concentration is measured using the apparatus of the present invention will be described as seawater 10. Therefore, below, it demonstrates only to the chlorine concentration measuring apparatus 1 of seawater.

Of course, the measurement object based on the apparatus or method of the present invention, as described above, is not necessarily limited to seawater, and the chlorine concentration measurement of water, fresh water (fresh water), constant water, treated water, etc., which need to measure the concentration of chlorine. Applicable to In other words, it is possible to apply the fluid of the object requiring the measurement of chlorine concentration.

In addition, in the present embodiment below, the seawater is described as seawater entering and entering the ballast tank of the ship, and therefore, the post-process (step) based on the measured value of chlorine concentration will be described as the operation of the ship. Of course, it is not necessarily limited thereto.

In addition, in Fig. 1, the ballast tank 12 of the ship, the other seawater flows to the extraction position of the seawater 10 in which the chlorine is measured through the apparatus of the present invention, or a pipeline 14 through which the water of the chlorine-treated water treatment flows. ), But is not necessarily limited to this, but is not necessarily limited to this, the concrete structure (water channel) or fresh water (flowing through the treated water treated with chlorine treatment in the water treatment plant) Fresh water can be extracted from tanks, other structures, etc., treated water, drinking water, fresh water, etc.

However, in the following description of the present embodiment, it will be described that seawater is extracted to measure the concentration of chlorine in the ballast tank 12 of the vessel.

Of course, chlorine measurement through the extraction of seawater (or water, such as treated water) 10 in the pipeline 14 or other tank 16 is of course possible.

For example, as shown in Figure 1, the seawater extraction line 32 associated with the ballast tank 12 of the vessel, other seawater extraction line (unsigned) associated with the pipeline 14 or associated with the tank Another seawater (treated water) extraction line (unsigned) is to be associated with the pump (Metering Pump) (P), and the pump (P) and the seawater supply line 30 of the apparatus of the present invention.

As shown in FIG. 1, the chlorine concentration measuring apparatus 1 of the seawater according to the present invention, as an example of the configuration, may measure the chlorine concentration of the seawater 10 extracted in association with the vessel ballast tank 12. Provided, but the chlorine concentration measuring unit 50 is connected to the sea water supply line 30, and is provided to control the temperature of the sea water in the sea water supply line 30 is configured to supply temperature controlled sea water to the measuring unit It may be configured to include a temperature control unit 70 of the sea water.

That is, the chlorine concentration measuring apparatus 1 of the seawater of the present invention basically measures the chlorine concentration contained in the seawater 10 via the chlorine concentration measuring unit 50, but in particular, the temperature control unit 70 of the seawater When the seawater is supplied to the chlorine concentration measurement unit, the temperature control (heating) is performed so that the temperature is higher than or equal to a temperature that provides an environment (condition) in which the concentration of chlorine can be measured normally and quickly as a sensor. For example, the temperature of the preferable seawater which enables the reliable measurement as a chlorine concentration measuring sensor is 5 degreeC or more.

At this time, as shown in Figure 1, the chlorine concentration measuring unit 50 of the device according to the present invention, the seawater supply line 30 is connected to the measuring unit housing 52 and the seawater supplied to the inside, and It may be provided including a chlorine concentration measuring sensor 54 provided in the measuring unit housing (52).

In addition, a discharge line 58 is installed in the housing 52 of the chlorine concentration measuring unit 50 to discharge the seawater 10 introduced therein and the chlorine concentration measured therein.

On the other hand, the sea water supply line 30 is specifically the first line 30a connected between the pump P and the temperature control unit 70 of the sea water, and between the temperature control unit 70 and the valve (V) The second line 30b may be connected to each other, and the third line 30c may be connected between the valve V and the housing 52 of the chlorine concentration measuring unit 50.

And, the seawater supply line 30 composed of each of the first to the third line is provided with a valve (V) for controlling the flow or supply of seawater, such valves (V) and the device control unit (C) and Known electrically controlled valves that operate in electrical connection.

On the other hand, a temperature sensor 56 is provided in the first line 30a of the seawater supply line 30 connected between the pump P and the temperature control unit 70 to be electrically connected to the device control unit 90, When the temperature of the seawater supplied through the pump is normal and quick to measure the concentration of chlorine in the measuring sensor 54, that is, when the temperature of the seawater is higher than 5 ° C., the operation of the valve V is controlled. By closing the valve V of the two lines 30b and through the fourth line (indicated by the dotted line) connected from the first line to the third line 30c, the seawater does not go through the temperature control part 70, The chlorine concentration measuring unit 50 may be supplied to the housing 52.

That is, in the case of the device of the present invention, if the measurement at the seawater temperature provides reliability at 5 ° C. or higher, the chlorine concentration can be measured by sending it directly to the chlorine concentration measuring unit 50.

At this time, as shown in Figure 1, the chlorine concentration measuring sensor 54 provided perpendicular to the housing 52 of the chlorine concentration measuring unit 50 is a known sensor (Amperometric Potentiostatic Three-Electrode System Chlorine Sensor) Can be.

For example, although not shown in a separate drawing, the chlorine concentration sensor 54 is introduced into the membrane cap through the membrane of the electrolyte cap and the membrane filled with the membrane cap in the sensor. Bromine ions in seawater convert the ion changes generated around the electrodes of the sensor 54 into electrical signals and transmit the electrical signals to the device controller 90. Such a device controller 90 is an electrical signal. The value is displayed in ppm or mg / l, so that the concentration value of chlorine is displayed on the device control unit 90 or other display device.

Alternatively, these measured chlorine concentration values may be sent to a port system that manages the necessary post-processing, for example, the vessel's entry or departure procedures, to make vessel operation faster.

However, in the case of the known chlorine concentration sensor, when the temperature of the sea water is lower than 5 ° C, the normal operation of the sensor, for example, ion change or reaction rate, is delayed, and the measurement time is considerably delayed, as in the conventional problem. However, it is difficult to secure confidence in the measured chlorine concentration measurement due to lack of precision.

Accordingly, the chlorine concentration measuring apparatus 1 of the present invention shown in FIG. 1 has an environment or measurement itself in which an appropriate measurement is made in which the temperature of the seawater 10 provides normal and reliable through the chlorine concentration measuring sensor 54. If the temperature of the seawater corresponding to the case of (not excessively delayed) is impossible, for example, 5 ° C. or less, the temperature of the seawater is quickly controlled (heated) to establish an appropriate measurement environment, thereby effectively It is always possible to measure chlorine concentration quickly and precisely.

As a result, the present invention enables rapid chlorine concentration measurement in seawater, thereby improving or maintaining the efficiency of related (post) processes or operations, in particular ship operations, which are performed on this basis.

Next, FIGS. 1 to 6 illustrate a temperature controller 70 of seawater according to the present invention. For example, various types of temperature controllers 70 are illustrated in FIGS. 2 to 6.

That is, the temperature control unit 70 of the seawater of the apparatus of the present invention basically, as shown in Figure 1, the first line 30a of the inlet and the outlet of the seawater supply line 30 associated with the pump (P) A temperature control line 72 provided inside the housing 73 which is a box structure to which two lines 30b are connected, and a heating means 74 enclosed outside or drawn into the inside of the temperature control line 72. It may be provided including.

Therefore, when the operation of the heating means 74 is controlled, the temperature control of the seawater passed through the temperature control line 72 is performed, and the heating means 74 connected to the temperature control line 72 is It is associated with a temperature control unit 76 associated with the device control unit 90, preferably via a temperature control switch 78.

At the same time, one or more temperature sensors 56 provided in the first line 30a of the seawater supply line 30 or at least in the housing 52 of the chlorine concentration measuring unit 50 are associated with the device control unit 90, and the device control unit 90. 90 is electrically connected to the heating means 74 via the temperature control unit 76 and the temperature control switch 78.

Accordingly, the temperature of the seawater 10 supplied from the seawater supply line 30 is measured at least in the measurement unit housing 52. At this time, when the seawater temperature is lower than the appropriate temperature, that is, the temperature of the appropriate seawater which provides a normal and reliable chlorine concentration, 5 ° C, the device control unit 90 and the temperature control unit 76 automatically heat the heating means 74. By operating while controlling the temperature of the seawater passing through the temperature control line 72 to control the temperature, and consequently the seawater introduced into the sensor region in the apparatus of the present invention is maintained at an appropriate temperature.

At this time, the various forms of the temperature control part 70 of this invention are shown in FIGS.

That is, as shown in FIG. 2 and FIG. 3, the temperature control line 72 through which seawater passes in an interval of the temperature control unit 70 of the seawater according to the present invention is an example of a resin tube 72a that can be curved. For example, it may be provided as a resin tube, such as a teflon tube, which is resistant to heat, and used for ondol, or a stainless tube, and these tubes 72a may be wound in multiple layers in the form of a ring.

However, below, it demonstrates only to a resin tube.

At the same time, as shown in Figs. 2 and 3, the heating means 74 provided in the resin tube 72a as described above may be provided as a heating coil 74a of about 400W, 10m wound on the outside of the tube. Can be.

For example, as shown in FIG. 3, the heating coil 74a includes an inlet portion 74a1 and an outlet portion 74a2, and surrounds the stacked tube, and surrounds the tube 72a in an eight-character shape. Can be.

Therefore, when the heating means 74, which is the heating coil 74a, generates heat through electrical control, the seawater passing through the inside of the pipe 72a is instantaneously heated to increase its temperature, and at least the sensor 54 It will be possible to measure the appropriate chlorine concentration through

4 and 5, in the chlorine concentration measuring apparatus 1 of the seawater according to the present invention, the temperature control line 72 is provided as a stainless pipe 72b as another form. The heating means 74 may be provided as a heating rod 74b which is drawn into the stainless pipe.

Therefore, when the heating rod 74b, which is the heating means, generates heat, the seawater passing through the stainless pipe 72b may be heated while being in direct contact with each other to perform temperature control.

On the other hand, the stainless pipe (72b) is provided in the form of 'H' through the bracket and pipe inside the housing 73 to allow the introduction of the heating rod, which is a heating means at the same time, the inlet and discharge of the sea water at the same time. The heating rod 74b may also be provided in a 'U' shape to increase a contact area with seawater.

That is, in any case, in the case of the seawater temperature control unit 70 of the present invention, the seawater is rapidly heated through an appropriate optimal structure so as to be above a temperature suitable for chlorine concentration measurement quickly and precisely.

In addition, it is preferable that both the vertical pipe 72a and the stainless pipe 72b of the temperature control line 72 through which the seawater passes through are made of a material that does not cause corrosion. This is because when a contaminant for corrosion is transferred to the sensor 54 side, the sensor may be malfunctioning or malfunctioning, or in severe cases, the sensor may be replaced.

At this time, the first and second lines 30a and 30b of the seawater supply line 30 connected to the housing 73 of the temperature control unit 70 in FIGS. 2 and 4 are the pump P side and the chlorine concentration, respectively. It may be provided as a seawater inlet line and extraction line associated with the measuring unit 50 side.

Next, FIG. 6 shows another type of temperature control part 70 according to the present invention. The heating means 74, i.e., heating, on the resin tube 72a, ie, the Teflon tube, shown in FIGS. The coil 74a may be wound, but the tube may be curved to increase the heating area of seawater passing through the temperature control line 72 of the temperature control unit 70.

In this case, although the size of the housing 73 of the temperature control unit is increased than in FIGS. 2 and 3, the temperature control through faster heating of seawater will be enabled.

On the other hand, if the chlorine concentration measuring method using the chlorine concentration measuring device 1 of the seawater according to the present invention described so far step by step, as shown in Figure 1, by measuring the temperature of the sea water 10 to measure the chlorine concentration Temperature control step of the seawater controlling (heating) to a temperature suitable for quick and precise measurement by the sensor 54, and chlorine concentration measurement of seawater to measure the chlorine concentration by using the chlorine concentration measuring sensor It may consist of steps.

Therefore, in the case of the chlorine concentration measuring method of the present invention, as described above, by controlling the temperature of the sea water different from the existing, at least 5 ℃ or higher seawater temperature of the chlorine concentration measurement through the chlorine concentration measuring sensor 54 is controlled. Therefore, the chlorine concentration can be measured accurately and quickly while ensuring reliability regardless of seawater temperature.

As a result, the present invention provides significant advantages over the conventional approach, which is constrained by existing temperatures.

1 .... Chlorine concentration measuring device 10 .... Object (sea water)
30. Object supply line 50 .... Chlorine concentration measuring unit
52 .... Measuring housing 54 .... Chlorine concentration sensor
56..Temperature sensor 58 .. Drain line
70 .... Temperature Control Unit 72 ... Temperature Control Line
74 .... heating means 90 .... device control

Claims (11)

Chlorine concentration measuring unit 50 is provided to enable the measurement of the chlorine concentration of the object 10 and the object supply line 30 is connected; And
An object temperature control unit 70 provided to control the temperature of the object to the object supply line 30;
Chlorine concentration measuring device configured to include. The method of claim 1,
The chlorine concentration measuring unit 50, the measuring unit housing 52 to which the object supply line 30 is connected; And
A chlorine concentration measuring sensor 54 provided in the measuring unit housing 52;
It is configured to include, the object is chlorine concentration measuring device, characterized in that the discharge through the discharge line 58 provided in the housing. The method of claim 1,
The object temperature control unit 70, the temperature control line 72 associated with the object supply line 30; And
Heating means 74 surrounded by or drawn into the outside of the temperature control line 72;
Chlorine concentration measuring device, characterized in that configured to include. The method of claim 3,
The temperature control line (72) is provided with a resin tube (72a) or a stainless tube, and the heating means (74) is provided with a heating coil (74a) wound on the tube, chlorine concentration measuring apparatus. 5. The method of claim 4,
The pipe is a chlorine concentration measuring device, characterized in that provided in the form of winding in a plurality of layers or curved. The method of claim 3,
The temperature control line (72) is provided by a stainless pipe (72b), the heating means (74) is provided with a heating rod (74b) which is introduced into the stainless pipe, chlorine concentration measuring apparatus. 3. The method of claim 2,
The chlorine concentration measuring sensor 54 is associated with a device control unit 90 associated with a temperature sensor 56 provided in at least one of the housing 52 or the object supply line 30, the heating means 74 is the device Chlorine concentration measuring device, characterized in that associated with the temperature control unit 76 associated with the control unit (90). 8. The method according to any one of claims 1 to 7,
The object 10 is chlorine concentration measurement, characterized in that provided as one of the seawater, water, treated water and water extracted from one of the vessel ballast tank 12, pipeline 14, storage tank 16 and the structure Device. A temperature control step of measuring the temperature of the object and controlling the temperature higher than the set temperature if it is lower than the set temperature; And
A chlorine concentration measuring step of measuring the chlorine concentration using the chlorine concentration measuring sensor of the object whose temperature is controlled;
Chlorine concentration measurement method comprising a. 10. The method of claim 9,
The object 10 is provided as one of seawater, water, treated water and a constant extracted from one of the vessel ballast tank 12, pipeline 14, storage tank 16 and the structure, the set temperature is 5 ℃ Chlorine concentration measuring method characterized by above. 11. The method according to claim 9 or 10,
A chlorine concentration measuring method using the chlorine concentration measuring device according to any one of claims 1 to 7.

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