KR101992612B1 - Autosampler for continuous water monitoring equipment - Google Patents

Abstract

The present invention relates to an automatic sample collection apparatus for a water quality continuous measuring instrument, which is connected to a water quality continuous measuring instrument and provides a test solution, comprising: a rotating shaft formed in a vertical direction on a ground surface and rotatable; At least four sample vessels disposed below the rotating shaft along a virtual extension of the longitudinal axis of the rotating shaft and capable of accommodating different inspection solutions; And an operation arm which is coupled to the rotary shaft so as to be movable up and down along the longitudinal direction of the rotary shaft and which supports the suction tube of the sensor or the analytical type water quality continuous meter of the sensor type water quality continuous meter, And the sensor or the suction tube fixedly supported by the operation arm by movement along the longitudinal direction of the rotation shaft of the operation arm can be immersed alternately in the test solution contained in at least four sample vessels , And an automatic sampling device for a water quality continuous measuring instrument.

Description

{AUTOSAMPLER FOR CONTINUOUS WATER MONITORING EQUIPMENT}

The present invention relates to an automatic sample collection technique for a water quality continuous measuring instrument, which is connected to a water quality continuous measuring device and provides a test solution to a water quality continuous measuring device.

Autosampler, which is applied to analysis equipment such as GC (Gaschromatography) and ICP (Inductively Coupled Plasma) to provide a small amount of a plurality of samples, is widely used. However, there is no automatic sampling system that can apply a large quantity of samples repeatedly at a plurality of concentrations different from each other.

On the other hand, the environmental measuring instrument inspecting institution shall end inspection of the equipment within 40 days after receipt of the performance test in accordance with the "Environmental Test and Inspection Act," and present the results of the performance test to the requester. In the water quality continuous measuring instrument, most of the equipment takes 1 hour per measurement time because of the nature of the analysis process. In the performance test of the water quality continuous measuring instrument, more than 350 data including the comprehensive performance test for 7 days are required according to the items. It is very difficult to meet the 40-day legal period that includes this holiday season

The results of the performance test determine the availability of the product. Therefore, the developer of the water quality continuous measuring instrument does not spare the human and material support to the inspection agency for the performance test. Developers of water quality consecutive meters will place high-level personnel in laboratories during the performance test, and the personnel perform the work of supplying samples with different concentrations in time to the equipment. If multiple vendors are performing performance tests at the same time, there may be a technology drain on the equipment under test. Since the inspectors utilize the data measured by the manpower of the developer, the reliability of the measurement process can not be secured and the security of the laboratory is difficult to maintain.

Today it is important to achieve laboratory automation and maintain competitiveness. Without advances in laboratory automation, it is impossible to provide complex forms of test and inspection services, such as more accurate and faster analysis and presentation of results, clinical and analytical testing, diagnostic results and large data processing.

The inventor of the present invention has accomplished the present invention after a long research and effort to solve the above-mentioned problems, to secure the speed and reliability of inspection, and to develop an automatic sampling device capable of contributing to laboratory automation.

The present invention provides an automatic sample collection device capable of automatically supplying a plurality of different test solutions to a water quality continuous measuring device.

It is possible to provide an automatic sample collection device capable of shortening the inspection period by increasing the speed and accuracy of inspection and improving the reliability of inspection.

On the other hand, other unspecified purposes of the present invention will be further considered within the scope of the following detailed description and easily deduced from the effects thereof.

According to an aspect of the present invention, there is provided an automatic sample collection apparatus for a continuous water quality meter,

A rotating shaft formed in a direction perpendicular to the paper surface and capable of rotating;

At least four sample vessels disposed below the rotating shaft along a virtual extension of the longitudinal axis of the rotating shaft and capable of accommodating different inspection solutions; And

And an operation arm coupled to the rotary shaft so as to be movable upward and downward along the longitudinal direction of the rotary shaft and configured to support the sensor of the sensor-like water quality continuous meter or the suction tube of the analytical-

The sensor or the suction tube fixedly supported by the operation arm can be immersed alternately in the test solution contained in at least four sample vessels by the rotation of the rotation axis and the movement along the longitudinal direction of the rotation axis of the operation arm ≪ / RTI >

An automatic sampling device for a water quality continuous measuring instrument is provided.

The rotating shaft may be rotatable 360 degrees.

Further, the present invention may further include a sensor cleaning unit that can clean the sensor by spraying compressed air to the sensor fixedly supported by the operation arm.

The sensor cleaning unit,

An air compressor providing compressed air;

A spray nozzle connected to the air compressor for spraying compressed air supplied from the air compressor;

And an injection line connecting the air compressor and the injection nozzle.

The position of the injection nozzle may be adjustable to correspond to the position of the lower end of the sensor.

The actuating arm may include a sensor having a variety of circumferential sizes or a fixed support in the form of a vise to fixably support the suction tube.

The operation arm includes:

The length of the rotary shaft may be adjustable along a direction perpendicular to the longitudinal direction of the rotary shaft.

By using the automatic sampling device for a water quality continuous measuring instrument according to the present invention, it is possible to quickly and accurately perform a conventional performance test with low efficiency and time consuming.

On the other hand, even if the effects are not explicitly mentioned here, the effect described in the following specification, which is expected by the technical features of the present invention, and its potential effects are treated as described in the specification of the present invention.

1 is a plan view of an automatic sample collection apparatus for a water quality continuous meter according to an embodiment of the present invention.
2 is a front view of an automatic sample collection apparatus for a water quality continuous meter according to an embodiment of the present invention.
FIG. 3 is a view showing that the operation arm is moved downward and the sensor is immersed in the test solution in the automatic sample collecting apparatus for the water quality continuous meter of FIG. 2;
4 is a view showing the configuration of a sensor cleaning unit for cleaning a sensor fixedly supported on an operation arm according to an embodiment of the present invention.
FIG. 5 illustrates a stationary support according to an embodiment of the present invention. Referring to FIG.
FIG. 6 is a view illustrating that an operation arm according to an embodiment of the present invention extends in the longitudinal direction.
It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of an automatic sample collection apparatus for a water quality continuous measuring instrument according to the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals And redundant explanations thereof will be omitted.

The water quality continuous measuring instrument is a measuring instrument for continuously monitoring the water quality of effluent and river in wastewater or sewage treatment plant, and can be divided into sensor type water quality continuous measuring instrument and analytical water quality continuous measuring instrument according to measuring method.

The sensor type water quality continuous measuring device measures the water quality by immersing the sensor directly in the test liquid, such as continuous hydrogen ion concentration meter and continuous oxygen analyzer.

The analytical water quality continuous measuring device is a device for measuring the concentration of the analyte in the sample through a series of processes such as sample quantification, decomposition and detection by transferring the sample to the measuring device. The continuous oxygen analyzer for chemical oxygen demand, Demand continuous automatic meter, total nitrogen continuous automatic meter, total continuous automatic meter, and total organic carbon continuous automatic meter.

On the other hand, the automatic sampling device is an automatic sampling device that automatically connects the sampling device to the water quality continuous measuring device in connection with the water quality continuous measuring device, different.

The present invention relates to an automatic sample collection device capable of automatically supplying a test solution (sample) having a different concentration to a water quality continuous measuring device.

FIG. 1 is a plan view of an automatic sampling device for a water quality continuous measuring device according to an embodiment of the present invention, and FIG. 2 is a front view of an automatic sampling device for a water quality continuous measuring device according to an embodiment of the present invention.

1 and 2, the automatic sample collection device for a water quality continuous meter according to the present invention is connected to a water quality continuous measuring device to provide test solutions W of different concentrations. The automatic sample collection device includes a rotating shaft 100, A container 200, and an operation arm 300.

The rotary shaft 100 is formed in a direction perpendicular to the paper surface, and rotates. At this time, the rotary shaft 100 can rotate 360 degrees. The rotary shaft 100 rotates 360 degrees and the operation arm 300 coupled to the rotary shaft 100 rotates so that the sensor S or the suction tube fixed and supported by the operation arm 300 also rotates.

The present invention includes at least four sample vessels (200). By including at least four sample vessels 200, it becomes possible to measure the concentration of the test solution W to be measured up to the case of zero, span and middle, and distilled water.

It is obvious that the measurement can be carried out with more sample vessels 200 when it is desired to measure the test solution W of a greater concentration.

At least four or more sample vessels 200 are disposed below the rotary shaft 100 along the imaginary extension line of the rotary shaft 100 in the longitudinal direction. Preferably, as shown in FIG. 1, when there are four sample vessels 200, each sample vessel 200 may be disposed at an angle of 90 degrees with respect to a virtual extension line of the rotating shaft 100. When there are five sample vessels 200, each sample vessel 200 may be disposed at an angle of 72 degrees with respect to an imaginary extension line of the rotary shaft 100.

The sample container 200 described above is supported by the support part of the sample container 200, and the height of the support part of the sample container 200 is adjustable. The height of the supporting part of the sample container 200 can be adjusted so that the height of the supporting part of the sample container 200 can be increased even if the length of the sensor S is short, It may be immersed in the test solution W in the sample container 200.

 The operation arm 300 supports the sensor S of the sensor-type water quality continuous meter or the suction tube of the analytical-type water quality continuous meter. The operation arm 300 is mounted on one surface of the rotation shaft 100, Respectively.

The height of the sensor S or the suction tube supported by the operation arm 300 is adjusted by movably coupling the operation arm 300 to the rotary shaft 100. [ The height of the sensor S or the suction tube can be adjusted so that the sensor S or the suction tube can automatically adjust the immersion and non-immersion in the test solution W of the sample container 200 on the lower side.

That is, when the operation arm 300 moves downward, the sensor S or the suction tube supported by the operation arm 300 also moves downward and is immersed in the test solution W of the sample container 200, Conversely, when the operation arm 300 moves upward, the sensor S or the suction tube supported by the operation arm 300 also moves upward and deviates from the test solution W.

When the sensor (S) is immersed in the test solution (W), the water quality continuous measuring device can measure the quality of water such as hydrogen ion concentration or dissolved oxygen.

When the suction tube is immersed in the test solution (W), the water continuous meter can measure water quality such as chemical oxygen demand, biochemical oxygen demand, total nitrogen, total phosphorus and total organic carbon.

Furthermore, by repeating the measurement in different solutions, the performance of the water quality continuous measuring device can be evaluated.

That is, in order to judge whether the performance of the sensor S of the sensor-like water quality continuous measuring device is operating properly, the test solution W of different concentration is contained in at least four sample containers 200, It is possible to determine whether or not the sensor S is operating properly by alternately immersing the sample container 200 in the other sample container 200.

At this time, the immersion and non-immersion of the sensor S in each sample container 200, the movement to the neighboring sample container 200, the immersion and non-immersion into the sample container 200, the rotation of the rotation shaft 100, 300 by moving up and down.

This improves the speed and accuracy of performance tests, enabling efficient and reliable performance testing.

3 is a view showing that the operation arm 300 is moved downward and the sensor S is immersed in the test solution W in the automatic sample collection apparatus for the water quality continuous meter of FIG.

As described above, the operating arm 300 is moved downward so that the sensor S fixedly supported on the operating arm 300 is immersed in the test solution W. Thus, the sensor S can be immersed and immersed in the test solution W through the upward and downward movement of the operation arm 300.

At this time, the time during which the sensor S is immersed in the test solution W can be set in advance. That is, the sensor S is immersed in the test solution W for a predetermined period of time to measure the water quality.

For example, if the water quality measurement time per each sample vessel 200 is set to 1 hour, the sensor S is immersed in each sample vessel 200 for only 1 hour.

Hereinafter, a process for evaluating the performance of the sensor-type water quality continuous measuring instrument will be described.

In order to evaluate the performance of the sensor type water quality continuous measuring device, the sensor S of the sensor type water quality continuous measuring device is fixed to the operation arm 300. In the four sample containers 200, the different solutions of the test solution W may be stored.

The rotary shaft 100 rotates to position the operation arm 300 fixedly supporting the sensor S on the upper portion of the first sample container 200. Thereafter, the operation arm 300 moves downward to immerse the sensor S in the inspection solution W accommodated in the first sample container 200 to an appropriate depth. Generally, since the sensing device is located at the lower end of the sensor S, the lower end of the sensor S can be immersed.

At this time, the water quality measurement time is set in advance, and after a predetermined time, the operation arm 300 moves upward, and the sensor S also deviates from the test solution W.

Thereafter, the rotary shaft 100 rotates by a predetermined angle (for example, 90 degrees) to move the operation arm 300 to the upper portion of the second sample container 200. The second sample container 200 contains a test solution W having a different concentration from the first sample container 200. The operation arm 300 moved to the upper portion of the second sample container 200 moves downward and is immersed in the test solution W contained in the second sample container 200. Thereafter, the above-described operation is repeated until the fourth sample container 200 is reached. One such inspection cycle can proceed.

In the above description, the performance test of the sensor S of the sensor-type water quality continuous meter is described, but the performance of the analytical water quality continuous meter can also be performed in the same manner, and thus a detailed description thereof will be omitted.

FIG. 4 is a view showing a configuration of a sensor cleaning unit 400 for cleaning a sensor S fixedly supported on an operation arm 300 according to an embodiment of the present invention.

It is necessary to clean the sensor S before the sensor S is immersed in the test solution W of the first sample container 200 and then moved to the test solution W of the second sample container 200 Do. Once the sensor S immersed in the test solution W is washed, the accuracy of subsequent water quality measurements can be improved.

The sensor cleaning unit 400 may include an air compressor 410, a spray nozzle 420, and a spray line 430. The air compressor 410 supplies compressed air, and the supplied compressed air is supplied to the injection nozzle 420 via the injection line 430. The injection nozzle 420 injects compressed air to the outside. At this time, the injection nozzle 420 can inject compressed air in three directions.

Thus, the sensor cleaning unit 400 can clean the lower end of the sensor S immersed once by injecting the compressed air, thereby improving the accuracy of water quality measurement of the sensor S thereafter.

At this time, the position of the injection nozzle 420 may be adjusted so as to correspond to the position of the lower end of the sensor S. Only the position of the injection nozzle 420 may be adjusted and the overall position of the injection nozzle 420 and the injection line 430 may be adjusted to correspond to the position of the lower end of the sensor S.

FIG. 5 illustrates a stationary support according to an embodiment of the present invention. Referring to FIG.

The fixed support portion is formed at one end of the actuating arm 300. The stationary support may be formed in the form of a vise so as to fixably support the sensor S or the suction tube of various circumferential sizes.

The fixed support may include a fixed support 310 and a bolt 320. The fixed support 310 is made up of a pair of holders. As the bolt 320 is tightened or loosened, one of the pair of holders is moved forward or backward, and the space area between the pair of holders is changed. Accordingly, the sensor S or the suction tube having various sizes can be fixed between the pair of holders.

FIG. 6 is a view showing that the actuating arm 300 according to the embodiment of the present invention extends in the longitudinal direction.

The size of the sample container 200 may vary, or the sample container 200 may sometimes need to be located outside. A separate apparatus may be required in the case of a water quality analysis in which the temperature should be kept constant and therefore this separate apparatus and the separate sample vessel 210 can be located outside the automatic sampling apparatus for the water quality continuous measuring instrument, In this case, the length of the operation arm 300 needs to be extended.

By extending the length of the operation arm 300, the immersion position of the sensor S fixedly supported on the operation arm 300 can be further diversified.

The length of the actuating arm 300 is adjusted so that the position of the sensor S or the suction tube fixedly supported on the actuating arm 300 can be more accurately adjusted.

The above-described automatic sampling device for the water quality continuous measuring device may further include a wheel B at the bottom. The movement of the automatic sampling device (B) for the water quality continuous measuring instrument can be made convenient and free through the constitution of the wheel.

The scope of protection of the present invention is not limited to the description and the expression of the embodiments explicitly described in the foregoing. It is again to be understood that the scope of protection of the present invention can not be limited by obvious alterations or permutations of the present invention.

B: Wheel
S: Sensor
W: Test solution
100:
200: Sample container
300: Operation arm
310: Fixed support
320: Bolt
400: sensor cleaning unit
410: Air Compressor
420: injection nozzle
430: injection line

Claims (7)

An automatic sampling device for a water quality continuous measuring instrument, which is connected to a water quality continuous measuring device and provides a test solution,
A rotating shaft formed in a direction perpendicular to the paper surface and capable of rotating;
At least four sample vessels disposed below the rotating shaft along a virtual extension of the longitudinal axis of the rotating shaft and capable of accommodating different inspection solutions; And
And an operation arm coupled to a side surface of the rotating shaft so as to be movable up and down in the lengthwise direction of the rotating shaft along the side surface of the rotating shaft to fix and support the sensor of the sensor type water quality continuous measuring device or the suction tube of the analytical type water quality continuous measuring device and,
The sensor or the suction tube fixedly supported on the operation arm by the rotation of the rotation shaft and the movement along the longitudinal direction of the rotation shaft of the operation arm are alternately immersed in the test solution contained in at least four sample vessels,
A fixing support portion for fixing and supporting the sensor or the suction tube is formed at one end of the operation arm,
The fixed-
A fixed support comprising a pair of holders; And
Bolts < / RTI >
The sensor or the suction tube being located between the pair of holders,
Characterized in that a space area between the pair of holders is changed by tightening or loosening of the bolt.
Automatic sampling device for water quality continuous measuring instrument. The method according to claim 1,
Characterized in that the rotary shaft is rotatable 360 degrees.
Automatic sampling device for water quality continuous measuring instrument. The method according to claim 1,
Further comprising a sensor cleaning unit capable of cleaning the sensor by spraying compressed air to the sensor fixedly supported by the operation arm.
Automatic sampling device for water quality continuous measuring instrument. The method of claim 3,
The sensor cleaning unit,
An air compressor providing compressed air;
A spray nozzle connected to the air compressor for spraying compressed air supplied from the air compressor;
And a jetting line connecting the air compressor and the jetting nozzle.
Automatic sampling device for water quality continuous measuring instrument. 5. The method of claim 4,
Wherein the position of the injection nozzle is adjustable to correspond to the position of the lower end of the sensor.
Automatic sampling device for water quality continuous measuring instrument. delete The method according to claim 1,
The operation arm includes:
And the length of the rotating shaft is adjustable along a direction perpendicular to the longitudinal direction of the rotating shaft.
Automatic sampling device for water quality continuous measuring instrument.

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