KR20080069429A - Chamber apparatus for assaying quality of water - Google Patents

Abstract

A chamber apparatus for assaying quality of water is provided to minimize the analyzing error of overall water quality by suppressing light scattering due to a stirring member with improving structures of each component when the water quality is analyzed in a light absorbing method. A chamber apparatus(1) for assaying quality of water includes a chamber member(10), a stirring member(30), a light emitting unit(50), and a light receiving unit(70). The chamber member receives and discharges sample water and pill. The stirring member mixes the sample water and the pill by being rotatably installed on the chamber member. The light emitting unit and the light receiving unit are incorporated to analyze the water quality of the chamber member in a light absorbing method. The light emitting unit and the light receiving unit are arranged with being separated from an inner wall surface of the chamber member so as to avoid a light interference due to foreign materials or air bubbles.

Description

Chamber Apparatus for Assaying Quality of Water

Figure 1 is a cross-sectional structural view showing a conventional container for water quality analysis

2 is a plan view of FIG. 1

Figure 3 is a cross-sectional structure showing the overall structure of the container device for water quality analysis according to the present invention

4 is a top view of FIG. 3

5 is a detailed exploded view of FIG.

Explanation of symbols on the main parts of the drawings

1 .... Vessel device for water quality analysis 10 .... Chamber member

12 .... Chamber 14 .... Cover

20 .... sample water inlet 22 .... outlet

24 .. Reagent input tube 30 .... Stirring element

50,70 .... Means for emitting and receiving light 52,72 .... Tube members

56,76 .... Seals 58,78 .... Emitters and receivers

The present invention relates to various components of water quality such as calcium, magnesium, etc., or water quality such as phosphate (PO ₄ ), silica (SiO ₂ ), fluorine (F), cyanide (CN), nitrogen oxides (NO ₂ , NO ₃ ), and the like. The present invention relates to a container apparatus for analyzing water quality, which is used for analyzing the light absorption method.

More specifically, when analyzing the hardness and other components of the water quality through the absorption analysis, the structure of the light emitting part and the light receiving part, the sample water inlet and the outlet, and the light scattering by the stirring member are suppressed, Minimizing component measurement errors not only makes it possible, but more particularly relates to a container system for water quality analysis, which makes it possible to significantly shorten the measurement time and is online.

Of Ca (calcium) and Mg (magnesium ions), calcium carbonate (CaCO ₃₎ to the corresponding amount thereto of contained in the there is a typical example hardness analysis of the quality of the water in the water quality analysis, the water hardness is the number of samples (water sample) mg / It means what was converted into L value.

Although calcium and magnesium are mainly derived from soil, they may be derived from seawater, sewage, factory wastewater, etc., or tap water may be due to lime treatment of concrete structures or tap water in general facilities or distribution facilities.

As such, calcium and magnesium are necessary ingredients for normal development of the skeleton and teeth, and also affect the taste of water. However, in the case of living water, high hardness is inconvenient to use soap or cause scale, so it is necessary to adjust the hardness of water.

On the other hand, according to the pollution process test method, the hardness analysis method in the sample water (water sample) reacts the EBT reagent (eriochrome black T indicator) with magnesium (magnesium ion) to form a chelate complex to turn reddish violet, The principle of calculating the concentration of hardness by finding the end point turning blue is used.

Or the light absorption analysis method which uses the reagent of a metal component and measures the absorbance degree is known. However, through such absorption analysis, not only the hardness of the water, but also other components of the water, such as phosphate (PO ₄ ), silica (SiO ₂ ), fluorine (F), cyanide (CN), and nitrogen oxides (NO ₂ , NO ₃₎ it is known to analyze other components such as.

For example, light absorption analysis can analyze not only the hardness of water but also various other components.

Next, FIG. 1 and FIG. 2 illustrate a container apparatus 100 for analyzing water, which is used to analyze the hardness of water as well as various components by absorbance.

That is, as shown in FIG. 1 and FIG. 2, the conventional container for analyzing water quality 100 includes a chamber 110 into which sample water is introduced and the added reagent is mixed. It may be provided with a quartz tube 112 used as an inner wall provided as a sealed container.

In addition, the light emitter 120a for penetrating the chamber 110 and being in close contact with the quartz tube 112, which is a sealed container, facing each other in the chamber, emits light and a light receiver 120b for receiving the emitted light, respectively. It is provided. Such light emitters and receivers may be known sensors.

Therefore, the light emitter 120a and the light receiver 120b are provided as measuring means for measuring and analyzing the water quality by measuring the absorbance while using the above-described metal reagent.

In addition, in the conventional apparatus, a stirring rod 130 for uniformly mixing the introduced sample water and the injected reagent is installed at the bottom of the chamber 110.

Although not shown in the drawing, the stirring rod 130 as described above is driven while the drive shaft of the electric motor provided outside the chamber is connected through the chamber.

Therefore, as shown in Figures 1 and 2, in the conventional container for water quality analysis device 100, the sample water inlet is provided on the bottom side of the chamber 110, and provided with an electrically operated on-off valve 142 When the sample water is introduced into the chamber 110 through the sample water inlet 114 to which the tube 140 is connected, the outlet 116 of the upper part of the chamber to which the discharge pipe 150 is connected after filling the inside of the chamber is filled. Is discharged through.

Then, when the electrically operated on-off valve 142 provided in the sample water inlet tube 140 is operated to close the inlet tube, the reagent is connected to the reagent inlet 118 on the lower side of the chamber 110 and the on / off valve The reagent is injected through the reagent supply pipe 162 having the 160.

Finally, when the reagent is injected into the chamber, the stirring rod 130 is rotated to uniformly mix the sample water and the reagent introduced into the chamber, and then the light emitted from the light emitter 120a is mixed with the sample water and the reagent. It is received by the light receiver (120b) passing through the area that is measured and the component of the water quality is made.

However, in the conventional container apparatus 100 for water quality analysis, as shown in FIG. 1 and FIG. 2, there are various problems as follows.

For example, as shown in FIG. 2, in the chamber 110 in which the sample water and the reagent are mixed when the stirring rod 130 rotates, a flow V flowing along the inner wall of the chamber by centrifugal force is generated. The same flow flow is included in the sample water to allow the foreign substances and bubbles introduced into the chamber to flow along the inner wall of the chamber, and eventually, the discharge of the foreign substances or the chamber is not smooth.

However, such foreign matter or bubbles act as an element that interferes or interferes with the transmission of light between the light emitter 120a and the light receiver 120b disposed to face the wall of the chamber 110, and at least generates light scattering to absorb light. A problem has arisen that makes water quality analysis difficult.

Therefore, conventionally, since the time required for the foreign matter to settle even after mixing of the sample water and the reagent through the stirring rod is completed (waiting until there is no light obstruction by the foreign matter), the measurement work for the water quality analysis is very difficult. There is a delay problem.

Moreover, above all, the error was considerable in the light quality hardness or the absorption analysis of other components.

In addition, in the conventional case, as the stirring bar 130 is installed in a white system, light emitted from the light emitter 120a is reflected or at least scattered in the stirring bar, thereby making it difficult to accurately measure absorbance. Also occurred.

The present invention has been made to solve the conventional problems as described above, the object of the aspect is to improve the structure of the light emitting part and the light receiving part, and the sample water inlet and outlet when stirring the various components of the water quality through light absorption analysis, stirring By suppressing light scattering by the member, it is possible to minimize the measurement error of various components of the overall water quality, and in particular, to provide a container apparatus for water quality analysis, which enables a very short measurement time.

As one technical aspect for achieving the above object, the present invention provides a container device for water quality analysis for absorbance analysis of water, comprising: a chamber member into and out of sample water and reagents;

A stirring member rotatably provided at the chamber member to mix sample water and a reagent; And,

It is embedded in the chamber member for absorbance analysis of water quality, and from the inner wall surface of the chamber member so as to avoid optical interference by foreign matter or bubbles contained in the sample water flowing along the inner wall surface of the chamber member when the stirring member is operated. Light emitting means and light receiving means spaced apart;

It provides a container device for water quality analysis configured to include.

In addition, another technical aspect of the present invention is a container for water quality analysis for absorbance analysis of water, comprising: a chamber member into which sample water and reagents are introduced and discharged, and a chamber member for absorbance analysis of water quality; Including light emitting means and light receiving means,

The chamber member is provided with a container apparatus for water quality analysis, each provided with a sample water inlet and outlet, and a reagent inlet for reagent input, arranged to have an air gap space therebetween.

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

3 and 4 show the container apparatus 1 for water quality analysis according to the present invention in an overall configuration diagram and a plan view.

As described above, the container apparatus 1 for water quality analysis according to the present invention mixes reagents with sample water and at the time of emission of light (light emission by the light emitting part) and absorption (light absorption by the light receiving part). It is a container apparatus for water quality analysis which measures water quality by the light absorption type.

A method for analyzing water quality through such absorption spectroscopic analysis is known.

For example, as shown in Figures 3 and 4, the container device for water quality analysis 1 of the present invention, the chamber member 10 which is largely introduced into the sample water and reagents are mixed inside for the water quality analysis and It is provided in the chamber member and consists of light-emitting and light-receiving means 50 and 70 for absorbance analysis.

In addition, the chamber member 10 may further include a stirring member 30 rotatably provided to mix the sample water and the reagent.

In addition, the chamber member 10 of the present invention, the sample 12 is introduced and discharged, the reagent is introduced and the chamber 12, the stirring member 30 is provided on the bottom side, and the light emitting means 50 and the light receiving The means 70 may be vertically installed to face each other in a state spaced apart from the inner wall surface of the chamber 12, it may be configured to include a cover 14 attached to the chamber.

Therefore, in the container device 1 for water quality analysis of the present invention, when the sample water is introduced into the chamber of the chamber member 10 and at the same time a reagent for water quality analysis is introduced, the stirring member on the bottom side of the chamber 12 is introduced. 30 is driven to rotate to mix the sample water and the reagent.

Next, the light emitted by the light emitting means 50 (L in FIG. 3) is received by the light emitting means 70 arranged at a predetermined distance through the region where the sample water and the reagent are mixed and absorbed by the absorbance method. This is measured.

Of course, at this time, although not shown in a separate drawing, the light emitting means 50 and the light receiving means 70 of FIG. 3 is transmitted to an analyzer (not shown) electrically connected to the measuring device as a signal of the degree of absorption of the light to sense the water quality The components can be measured and analyzed.

In this case, the water component may be measured as hardness or various other components such as phosphate, fluorine, and cyan, depending on the type of reagent added.

On the other hand, as shown in Figures 3 and 4, the stirring member 30 for mixing the sample number and the reagent in the chamber 12 of the chamber member 10, although not shown in a separate drawing, the chamber Of course, the drive source provided on the outside of the chamber bottom side of the member, for example, the shaft of the electric motor is connected and rotationally driven.

In addition, in the apparatus of the present invention, the stirring member 30 is preferably formed in a black or brown color that suppresses light reflection and scattering.

For example, the conventional stirring member 130 of FIG. 1 is white, so that the light emitted from the light emitting part is reflected by the stirring member, thereby decreasing the absorbance accuracy for water quality analysis. In the apparatus of the present invention, a color example is not reflected. For example, the stirring member 30 was formed in a black or brown color.

At this time, of course, the color may be processed to the stirring member.

In particular, as shown in Figure 4, in the container device for water quality analysis of the present invention, the light emitting means 50 and the light receiving means 70, the flow flow generated when the stirring member 30 is operated ( At least a distance from the chamber inner wall surface of the chamber member 10 so as to eliminate optical interference or interference caused by foreign matter P or bubbles P ′ included in the sample water flowing along V) (or vortex) (FIG. 4). 'S') has its features.

That is, the light emitting and receiving means of the present invention, as shown in FIG. 4, is disposed in the conventional wall of FIG. 1 so as to face each other on the wall surface of the chamber 110, which is a chamber member. Since it is spaced apart from the inner wall surface of the chamber of the member by 'S', foreign matter P or bubble P 'flows along the inner wall of the chamber by the flow V of water generated when the stirring member is operated. However, since the bubbles deviate from the light transmission region, the optical interference is minimized.

Therefore, the container apparatus 1 for water quality analysis of this invention is excellent in the light absorption precision, and eventually improves the measurement precision of a water quality component.

At this time, the light emitting means and the light receiving means are preferably arranged so as to be spaced apart from the inner wall surface at the same interval in the center of the cylindrical chamber.

On the other hand, the installation structure of the light emitting and receiving means will be described in detail again in FIG.

Next, as shown in Figures 3 and 4, the apparatus of the present invention is the chamber member 10, for example, the chamber member chamber 12, the sample water inlet 12a is connected to the sample water inlet pipe 20 And a discharge port 12b to which the discharge pipe 22 is connected, and a reagent inlet 12c to which the reagent inlet pipe 24 is connected, respectively.

The sample water inlet tube 20 and the reagent inlet tube 24 are each provided with electrically operated on / off valves 20a and 24a for adjusting the inflow of the sample water and the reagent into the chamber member.

On the other hand, in the container apparatus 1 for water quality analysis of the present invention, more preferably, the sample water inlet 12a and the discharge pipe 22 of the chamber member chamber 12 to which the sample water inlet pipe 20 is connected. The outlet 12b of the chamber member chamber 12 to be connected is formed to have a height difference (D).

For example, as shown in FIG. 3, the outlet 12b disposed above the chamber 12 of the chamber member 10 of the present invention so as to face each other is lower than the sample water inlet 12a by 'D'. When arranged to form a difference, a space due to the height difference, that is, an air layer space A is formed directly below the chamber upper cover.

Therefore, bubbles which are likely to occur when sample water flows into the chamber of the chamber member, the reagent is introduced and mixed as the stirring member are easily removed while being combined with air in the air layer space A.

At this time, most preferably in the apparatus of the present invention, the sample water inlet 12a and the outlet 12b are disposed opposite to each other in the chamber member, and the reagent inlet 12c is formed in the center portion therebetween.

In addition, as shown in Figure 3, the sample water inlet 12a of the chamber member of the chamber is connected to the 'T'-shaped connecting pipe 26, the sample water inlet pipe 20 to one side of the connecting pipe It is also possible to connect the vent pipe 28 to the opposite side.

In this case, when air is supplied to the inside of the chamber member through the vent pipe 28, it is easy to remove the air bubbles in the air layer space A described above, and to prevent the remaining of the sample water in the discharge pipe 22.

In addition, the height difference arrangement of the inlet and the outlet and the vent connection structure keep the sample water level in the chamber member constant.

Next, based on Figure 3 and Figure 4, when the operation of the container apparatus 1 for water quality analysis of the present invention is summarized, the sample water is introduced through the sample water inlet (12a) provided in the chamber of the device chamber member, the chamber member When it is filled in and starts to be discharged through the outlet 12b of the chamber, the on / off valve 20a of the sample water inlet tube 20 is closed by electric operation, and bubbles introduced with the sample water are in the inlet and outlet height difference. It is gathered in the air layer space (A) formed by.

In addition, when the air-operated opening / closing valve 28a of the vent pipe 28 connected to the inlet connecting pipe 26 is opened for a short time and air is introduced (vented), the bubbles collected in the air layer space are removed, and the inside of the chamber is removed. The level of the number of samples is also constant.

Next, while the reagent is injected through the reagent inlet 12c connected by operating the electrically operated on / off valve 24a of the reagent inlet tube 24, the stirring member 30 is rotated so that the sample water and the reagent in the chamber member. Mix uniformly.

Then, when the stirring member 30 starts to rotate, the foreign matter P introduced into the sample water and the bubbles P ′ remaining in the sample water are centrifugal force generated by the rotation of the stirring member, as shown in FIG. 4. It flows along the flow (V) formed in close proximity to the chamber inner wall surface.

At this time, the foreign matter or bubbles flow along the inner wall surface of the light emitting means 50 and the light receiving means 70 disposed to face each other at a predetermined distance S from the inner wall surface of the chamber, so that the light emitting means and the light receiving means The interference or interference of light transmitted between them is excluded.

Therefore, as before, the apparatus should be operated after waiting for some time for the foreign matter to settle or bubbles disappear, but since the apparatus of the present invention enables water absorption measurement immediately after the start of stirring, the measurement time can be greatly shortened. To be able.

Next, FIG. 5 shows the light emitting means 50 and the light receiving means 70 and their chamber member mounting structure in detail in the container apparatus 1 for water quality analysis of the present invention.

That is, the light emitting means 50 and the light receiving means 70 of the present invention are detachably attached to the cover 14 of the chamber member 10 and are disposed to face each other while being spaced apart from the inner wall surface of the chamber, Tube members 52 and 72 which are inserted into the chamber in a sealed state and allow light to pass through, and sealing members 56 and 76 which are coupled to the upper part and the cover of the tube members 52 and 72. It includes a light emitter and a light receiver 58, 78 provided in each of the lead frame 54, 74 is extended to the inner bottom of the power is applied.

Accordingly, the lead frames 54 and 74 having the light emitters and the light receivers 58 and 78 attached to the lower ends of the tube members 52 and 72, for example, are inserted into the transparent quartz tubes having excellent light passage. In addition, the lead frame allows the sealing members 56 and 76 to be fitted to the upper end of the tube member, for example, to pass through an elastic rubber packing.

At this time, the cover 14 is tightly fixed (bolt or screw fastened) to the flange portion 12 'protruding inward to the upper end of the chamber 12, the seating groove portion formed through a predetermined interval to the center of the cover The tube members pass through 14a, and the protruding peripheral portions 56a and 76a of the sealing member are caught and fixed to the seating groove portion 14a.

As a result, the light emitter 58 which substantially emits light and the light receiver 78 which receives light passing through the region where the sample water and the reagent are mixed are disposed opposite the stirring member of FIG. 3 inside the tube member. Absorbent measurements of water quality are performed.

In this case, the light emitter and the light receiver may use known sensor devices.

On the other hand, although not shown in the drawings, the inlet tube, outlet tube, reagent inlet tube may be connected to the chamber member, that is, the flange screw assembly form the chamber, the connecting pipe 26 and the inlet pipe 20 and the vent pipe 28 ) Can also be connected in the form of a flange.

In addition, as shown in FIG. 5, an o-ring for blocking leakage in the seating groove 14a of the cover 14 through which the tube members 52 and 72 of the light emitting unit 50 and the light receiving unit 70 pass. It would be further preferred that (15) be provided.

According to the container apparatus for water quality analysis of the present invention, when the water quality analysis in the light absorption method, by improving the structure of the light emitting part and the light receiving part, the sample water inlet and outlet, and suppressing light scattering by the stirring member, the overall water quality It provides an excellent effect that makes it possible to minimize analysis errors.

In addition, during the water quality analysis, there is no need to wait for the in-device precipitation of foreign matter contained in the sample water, which provides another excellent effect that can greatly shorten the water quality measurement time.

Therefore, according to the container apparatus for water quality analysis of the present invention, it is to accurately implement industrial water quality management.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (10)

In the container device for water quality analysis (1) for absorption analysis of water quality, A chamber member 10 into which sample water and reagents are introduced and discharged; A stirring member 30 rotatably provided at the chamber member 10 to mix sample water and a reagent; And, It is embedded in the chamber member for absorbance analysis of water quality, and is spaced apart from the inner wall surface of the chamber member to avoid optical interference by foreign matter or bubbles contained in the sample water flowing along the inner wall surface of the chamber member when the stirring member is operated. The light emitting means 50 and the light receiving means 70 disposed; Container for water quality analysis, characterized in that configured to include. According to claim 1, wherein the chamber member 10, the sample water inlet (12a) and outlet (12b) arranged with the height difference (D) to form an air layer space (A), and a reagent inlet for reagent input Container device for water quality analysis, characterized in that each provided (12c). In the container device for water quality analysis (1) for absorption analysis of water quality, A chamber member 10 into which the sample water and the reagent are introduced and discharged, and a light emitting means 50 and a light receiving means 70 which are embedded in the chamber member for absorbance analysis of water quality, The chamber member is provided with a sample water inlet (12a) and outlet (12b) and a reagent inlet (12c) for the reagent input are arranged with the height difference (D) to form an air layer space (A), respectively A container apparatus for analyzing water quality. The container apparatus for water quality analysis according to claim 3, further comprising a stirring member (30) rotatably provided in the chamber member (10) for mixing sample water and reagents. According to claim 4, The light emitting means 50 and the light receiving means 70 is built in the chamber member, the light by the foreign matter or bubbles contained in the sample water flowing along the inner wall surface of the chamber member when the stirring member is operated Container for water quality analysis, characterized in that spaced apart from the inner wall surface of the chamber member to avoid interference. 6. The container apparatus for water quality analysis according to any one of claims 1, 4 and 5, wherein the stirring member (30) is formed in a black or brown color to suppress light scattering. According to claim 2 or 3, wherein the sample water inlet 12a, outlet 12b and the reagent inlet 12c of the chamber member 10, respectively, the sample water inlet 20, discharge pipe 22 and Reagent input tube 24 is connected to the container device for water quality analysis. The method of claim 7, wherein the sample water inlet (12a) of the chamber member is connected to the connecting pipe 26, the sample water inlet pipe 20 is connected to one side of the connecting pipe and the other side of the bubble in the chamber member is removed Container for water quality analysis, characterized in that the further increase the vent pipe 28. The method according to claim 1 or 5, wherein the chamber member 10, Sample water is introduced and discharged, the reagent is injected, the chamber 12 is provided with the stirring member 30 on the bottom side; And, A cover 14 in which the light emitting means 50 and the light receiving means 70 are vertically fixed to face each other while being spaced apart from the inner wall surface of the chamber 12 and covered by the chamber; Container for water quality analysis, characterized in that configured to include. The method of claim 9, wherein the light emitting means 50 and the light receiving means 70, Removably vertically installed on the cover 14 of the chamber member 10 to be spaced apart from the inner wall surface of the chamber 12 to face each other, is inserted into the inside of the chamber in a sealed state and made of a material capable of passing light Tube members 52 and 72; And, A lead frame 54 which is assembled to an upper portion of the tube members 52 and 72 and extends to a lower end of the tube member through sealing members 56 and 76 supported by a seating groove portion 14a formed in the cover; Light emitters and light receivers 58 and 78 provided at 74; Container for water quality analysis, characterized in that configured to include.

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