KR100329956B1 - Apparatus for continuously measuring contamination of multiple components of water - Google Patents

Abstract

PURPOSE: An apparatus for continuously measuring contamination of multiple components of water is provided to allow for rapid measurement and ease of management of the apparatus even over a long period of use. CONSTITUTION: An apparatus comprises an automatic pressure control unit for permitting the contaminated water or fluid to flow into the apparatus at a constant pressure; a main body(10) for permitting the contaminated water or fluid flowing from the automatic pressure control unit to fall within the apparatus; a radiation unit for radiating light to the contaminated water or fluid falling in the main body; a light receiving unit for receiving the light passed through the water and outputting a signal corresponding to the quantity of light; an air supply unit for supplying hot air to the radiation unit and light receiving unit so as to remove moisture; and a control unit(94) for comparing signals output from the radiation unit and light receiving unit, displaying the corresponding signal, and controlling each unit. The automatic pressure control unit includes a pressure control pipe, a drain pipe and a cock. The radiation unit includes a radiation pipe(50), a lamp(54), a focusing lens(58), a filter(62a) and a sensor(64a). The light receiving unit includes a first light receiving pipe(70), a second light receiving pipe, a beam splitter, a filter(82) and a sensor(88).

Description

Water quality multi-component continuous pollution measuring device

The present invention relates to an apparatus for measuring pollution of water, and to measure pollution according to various components included in the sewage by measuring the amount of light according to each wavelength of the ray passing through the sewage and irradiating the sewage to be measured. The present invention relates to a multi-component continuous contamination measuring apparatus.

As environmental pollution is getting worse day by day, there is a need for a device for measuring the degree of pollution such as sewage flowing into rivers. In addition, an automated pollution measuring device is needed to measure the degree of sewage treatment treated at sewage treatment plants installed at each plant.

Conventionally, there is a problem that requires a long time because the sewage flowing to take to the laboratory to analyze. In order to improve such a problem, a pollution degree measuring apparatus capable of irradiating light to the sewage flowing through the glass tube and measuring the degree of contamination by the amount of light passing through the sewage has been disclosed.

Figure 1 is a cross-sectional view of an embodiment of the conventional pollution measurement apparatus for sewage using the amount of light transmitted through the light to the sewage.

The sewage flowing in from the outside passes through the glass tube 2 installed inside the measuring device main body 1, and the light emitted from the light emitting lamp 3 passes through the sewage passing through the glass tube, and is installed on the opposite side of the light emitting lamp 3 ( 4) is detected. The comparison sensor 4 outputs a signal corresponding to the amount of light of the detected light beam and inputs it to the controller 5, and the controller 5 displays the pollution degree of the sewage according to the input signal.

In such a device, since the sewage passes through the inside of the glass tube, the glass tube is contaminated by contaminants mixed in the sewage. When the glass tube is dirty, the progress of the light beams is disturbed by the contaminants attached to the inside of the glass tube, so the accuracy of the contamination measurement is reduced. Therefore, the glass tube has to be checked and cleaned from time to time.

In addition, since only one pollutant could be measured at one time among various pollutants included in the sewage, there is a problem that it takes a long time to measure the various pollutants included in the sewage.

The present invention has been made in order to solve the above problems, in the device for measuring the degree of contamination using the light amount of the light beams passing through the sewage to the sewage, the pressure control of the sewage by the contamination contained in the sewage In order to prevent the pipe from being contaminated, the pressure control pipe is removed to allow the sewage to fall freely and the sewage light is received by scattering the light scattered by the sewage and the light scattered in two paths by a beam splitter installed on the light receiving unit side. An object of the present invention is to provide a pollution degree measuring device using light rays capable of simultaneously measuring a plurality of pollutants contained therein.

In order to achieve the above object, the present invention, in the pollution degree measuring device of filthy water to measure the pollution degree using the light quantity of the light beam passing through the filthy water, the filthy water or fluid supplied from the outside is measured at a constant pressure Automatic pressure control unit for introducing into the device, the main body to allow the sewage or fluid flowing from the automatic pressure control unit freely falling in the interior of the measuring device, to irradiate light to the sewage or fluid freely falling inside the body portion Irradiation unit, a light receiving unit for receiving a light beam passing through the sewage from the irradiation unit and outputs a signal corresponding to the amount of light for each wavelength of the received light, the air supply unit for supplying hot air to the irradiation unit and the light receiving unit to remove moisture in the irradiation unit and the light receiving unit By comparing the signal output from the irradiation unit and the light receiving unit with a reference value It indicates that it is composed of the control unit for controlling the measuring device so as to display the first half call.

1 is a cross-sectional view of an embodiment of a conventional pollution degree measurement of sewage.

2 is a perspective view of the pollution degree measuring apparatus according to the present invention.

3 is a cross-sectional view of the pollution degree measuring apparatus according to the present invention.

Figure 4 is a perspective view showing one embodiment of a pollution degree measuring device configured using a measuring device according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: main body 20: sewage inflow pipe

24: sewage supply pipe 28: discharge pipe

50: investigator 54: lamp

58: focusing lens 64: comparison comparison sensor

70: light receiving tube 74: light receiving lens

78: beam splitter 62a, 62b; first and second comparison filters

64a, 64b: first and second comparison sensors 94: control unit

98: air supply line

Referring to the drawings the configuration and operation of the present invention in detail as follows.

2 is a perspective view of a pollution degree measuring apparatus according to the present invention, Figure 3 is a cross-sectional view of a pollution degree measuring apparatus according to the present invention, Figure 3 is a plan view of a pollution measuring apparatus according to the present invention, Figure 5 is a measurement according to the present invention A perspective view showing one embodiment of a pollution measuring device constructed using the device.

Referring to the present invention with reference to Figures 2, 3 and 5, the automatic pressure control unit is the pressure of the sewage so that the sewage supplied through the sewage inlet pipe 20 supplied from the outside is always supplied to the measuring device at a constant pressure The sewage of the pressure regulating pipe 32 is automatically discharged to the outside when the amount of the sewage supplied to the pressure regulating pipe 32 by the pressure regulating pipe 32 and the sewage inflow pipe 20 to be adjusted is a predetermined range or more. By installing the discharge pipe 28 and the lower portion of the pressure control pipe 32 to prevent the sewage of the pressure control pipe 32 to exceed a predetermined amount to discharge the debris accumulated in the pressure control pipe 32 to the outside. The discharge cock 34 is comprised.

The irradiator includes an irradiation tube 50 protruding into an inner wall of the main body 10, a lamp 54 for emitting light rays, a focusing lens 58 for focusing the light rays emitted from the lamp 54 in one direction, The amount of light passing through the first and second comparison filters 62a and 62b and the first and second comparison filters 62a and 62b that pass only the light of a specific wavelength of the light emitted from the lamp 54 is measured. And first and second comparison sensors 64a and 64b that measure and output corresponding values.

The light receiving unit includes a first light receiving tube 70 provided in line with the irradiation tube 50, a second light receiving tube 72 provided in a direction perpendicular to the irradiation tube 50, and the first and second light receiving tubes ( First and second light receiving lenses 74a and 74b for condensing the light rays received at 70 and 72, and a beam splitter 78 for dividing the paths of the light rays received by the first light receiving lens 74a. In the light beam received by the second light receiving lens 74b, the first and second comparison filters 82 and 84 which pass only the light having a specific wavelength in the light beam whose path is split by the beam splitter 78 A third filter 86 for passing only light having a specific wavelength, and first, second, and third measuring the amount of light passing through the first and second comparison filters 82, 84, and 86 and outputting a corresponding value; It consists of three comparison sensors 88, 89 and 90.

Referring to Figures 2 to 5 the configuration and operation of the present invention will be described.

Opening the sewage supply cock 22 installed in the middle of the sewage inlet pipe 20 to measure the degree of contamination of the sewage, the sewage is introduced from the outside of the measuring device through the sewage inlet pipe 20. At this time, the sewage inflow pipe 20 is connected to the pressure control pipe 32, and the sewage supply pipe 24 so that sewage flows into the measuring device at the lower side of the connection portion of the sewage inflow pipe 20 and the pressure control pipe 32. Is branched. A discharge pipe 28 is installed at an upper portion of the connection portion between the sewage inflow pipe 20 and the pressure control pipe 32.

When the inlet pressure of the sewage flowing through the sewage inflow pipe 20 from the outside exceeds an appropriate limit, the flow rate of the sewage flowing into the main body 10 may be excessively high, thereby reducing the accuracy of the measurement. When the pressure of the sewage through the sewage inflow pipe 20 is increased and the level of sewage is increased to the position where the discharge pipe 28 is installed, some sewage is discharged through the discharge pipe 28 and the measuring device is provided through the sewage supply pipe 24. The accuracy of the measurement is maintained by keeping the pressure of the sewage flowing into the furnace at a constant range.

Since the supply pressure of the sewage flowing into the main body 10 through the sewage supply pipe 24 is always constant, the sewage within the main body 10 always falls freely in a uniform state.

The discharge cock 34 attached to the lower portion of the pressure control pipe 32 is used to prevent the accumulation of contaminants in the pressure control pipe 32 due to the continuous inflow of sewage, and the discharge cock 34. When opened, the pollutants accumulated in the pressure control pipe 32 are discharged.

The sewage introduced into the measuring device flows into the main body 10 and freely falls toward the discharge pipe 14 installed on the lower side of the main body 10. The diameter of the inlet of the discharge pipe 14 is preferably at least twice as large as that of the sewage supply pipe 24 so that the freely-falled sewage can be easily discharged through the discharge pipe 14 without being buried in the main body 10. .

When the sewage introduced from the outside falls freely toward the discharge pipe 14, a predetermined amount of light rays are generated in the lamp 54 provided inside the irradiation tube 50 and irradiated to the falling sewage. That is, the light rays generated by the lamp 54 pass through the span adjustment filter 68 provided in front of the lamp 54 and are then irradiated to the sewage side by the focusing lens 58 in a predetermined direction and a light beam.

When the power supplied to the lamp 54 becomes unstable, the amount of light emitted from the lamp 54 also changes, so that the error measured by the pollution degree measuring apparatus may be large. Accordingly, at this time, the first comparison sensor 64a and the second comparison sensor 64b are attached to the rear portion of the lamp 54 to detect the amount of light emitted from the lamp 54 and to correspond to the detected amount of light. Outputs a signal to be input to the control unit 94. In this case, the first comparison filter 62a installed in front of the first comparison sensor 64a enables the amount of visible light emitted from the lamp 54 to be measured, and the first comparison filter 62a installed in front of the second comparison sensor 64b. 2 Comparative filter 62b measures the amount of ultraviolet light emitted from lamp 54. In addition, the first and second comparison filters 62a and 62b may use the same filter as the first and second filters 82 and 84 which are measurement filters.

The controller 94 corrects the value output from the first and second sensors 88 and 89 for the change in the amount of light that appears by measuring the signals output from the first and second comparison sensors 62a and 64b.

The light beam emitted from the lamp 54 passes through the sewage and then enters the first light receiving tube 70 which is perpendicular to the dropping direction of the sewage and is located in a line with the irradiation tube 50. In addition, some of the light beams irradiated to the sewage are scattered by the substances (mainly oil components) contained in the sewage. Scattered light scattered by the oil component enters the second light receiving tube 72.

At this time, the irradiation tube 50 and the first and second light receiving tubes 70 and 72 are protruded to the sewage side than the inner wall of the main body 10, so that the light beam irradiated to the sewage is the main body 10 and the discharge pipe 14. Reflected on the inner wall of the to prevent the re-injection into the irradiation tube 50 and the first, second light receiving tube (70, 72).

First and second light receiving lenses 74a and 74b are provided at front portions of the first light receiving tube 70 and the second light receiving tube 720, respectively, so that light incident to the light receiving tube is guided to the sensor side installed at the rear.

Light rays incident on the first light receiving tube 70 are guided to the beam splitter 78 by the first light receiving lens 74a. The beam splitter 78 is a translucent glass thin plate, which serves to pass one half of the light received by the first light receiving lens 74a and reflect the other half at a 45 degree angle.

Since the light irradiated to the sewage is blocked by various contaminants contained in the sewage during the passage of the sewage, the amount of light changes after the sewage passes in comparison with the initial irradiation amount.

After the light beam reflected by the beam splitter 78 and whose optical path is changed is passed through only the wavelength required by the first filter 82, the first sensor 88 senses the light amount of the light beam passing through the filter, thereby reducing the amount of light. It outputs a signal corresponding to the, and the output signal is input to the control unit 94.

On the other hand, the light ray passing through the beam splitter 78 and maintaining a constant optical path allows only the wavelength required by the second filter 84 to pass, and then the signal corresponding to the amount of light is transmitted by the second sensor 89. It outputs to be input to the control unit 94.

As the first and second filters 82 and 84 are replaced with filters of different wavelength ranges, the amount of light of the wavelengths detected by the first and second sensors 88 and 89 may be changed. For example, if the first filter 62 uses a comparison filter for passing a yellow wavelength of 546 nm, and the second filter 64 uses a comparison filter for passing 254 nm of ultraviolet light, the first sensor 88 is used. Detects the amount of light of the yellow wavelength, the second sensor 89 detects the amount of ultraviolet light. The yellow wavelength, which is visible light, is used to measure turbidity, and ultraviolet light is used to measure nitrate concentrations of sewage, biological oxygen demand (BOD), and chemical oxygen demand (COD).

Since the oil component contained in the sewage is fluorescence scattered in the 90 ° direction when irradiated with ultraviolet rays, the second light receiving tube 72 for receiving the light scattered by the sewage is different from the first light receiving tube 70. It attaches to the side of (10), and receives the fluorescent-scattered ultraviolet light. The third filter 86 provided inside the second light receiving tube 72 uses a filter that passes a wavelength of 340 to 360 nm.

The second light receiving lens 74b installed in the second light receiving tube 72 collects the scattered light and sends it to the third sensor 90, and the third sensor 90 transmits a signal corresponding to the amount of light received. It outputs to be input to the control unit 94.

The controller 94 compares the signals output from the first, second, and third sensors 88, 89, and 90 with reference values stored and stored in the controller 94. At this time, the reference value is set by the following method.

The sewage pipe 36 and the fluid pipe 38 are respectively connected to the lower portion of the sewage inflow pipe 20, and the first solenoid valve 40 and the second solenoid valve 42 capable of supplying or blocking sewage and fluid are sewage pipes. It is attached to the intermediate part of the 36 and the fluid pipe 38. After closing the first solenoid valve 40 attached to the sewage pipe 36 to prevent the sewage from being supplied, the second solenoid valve 42 attached to the fluid pipe 38 is opened to open the fluid into the sewage inlet pipe 20. It can be supplied through. The fluid supplied through the sewage inflow pipe 20 flows into the main body 10 of the measuring device and freely falls to the discharge pipe 14 side as in the case of the sewage supply.

Light rays are irradiated to the free-falling pure water, and the light rays passing through the fluid are passed and reflected through the beam splitter 78 and then the first and second sensors 88 and 89 through the first and second filters 82 and 84. ), A signal corresponding to the amount of light detected by the first and second sensors 88 and 89 is output to the controller 94. In addition, the light scattered from the fluid is received by the second light receiving tube 72 is sensed by the third sensor 90 to output a value corresponding to the amount of light to be input to the controller 94.

At this time, since the signal input to the controller 94 represents a value of a non-contaminated state, the controller 94 sets and stores the input signal as a reference value.

The controller 94 compares the reference value set in the above-described manner with the signals output from the first, second and third sensors 88, 89, and 90 that detect the amount of light passing through the sewage, and compares it with the reference value. The difference between the sensor output value is output through a display unit (not shown).

During this measurement, sewage is continuously introduced and free fall inside the body 10, so that moisture generated from the sewage flows into the irradiation tube 50 and the first and second light receiving tubes 70 and 72, thereby emitting light. 54 and various sensors may malfunction. In addition, when moisture forms on the focusing lens 58 and the first and second light receiving lenses 74a and 74b, the path of the light beams is affected, and thus the light beam irradiated from the irradiation tube 50 does not pass through the sewage, or the light receiving tube Since the received light may not reach the sensor side, it is necessary to remove moisture in order to accurately measure the contamination of sewage.

In order to remove moisture, a hot air fan (not shown) is installed outside the measuring device, and the air supply line 98 is used to irradiate the heating tube 50 and the first and second light receiving tubes 70 and 72 of the hot air and the measuring device, respectively. Connect. One side of the air supply line 98 is connected to the hot air blower, and the other end is branched into three parts, and the focusing lens 58 and the first and the first installed on the irradiation tube 50 and the first and second light receiving tubes 70 and 72. It connects to the front of 2nd light receiving lens 74a, 74b, respectively, and supplies air heated at a predetermined temperature by a hot air fan. As the air heated to a constant temperature is continuously supplied, moisture is not trapped in the irradiation tube 50 and the first and second light receiving tubes 70 and 72.

On the opposite side of the connecting portion between the air supply line 98 and the irradiation tube 50 is attached a temperature sensor 66 to measure the temperature of the air supplied from the air supply line 98, and outputs a signal corresponding to the temperature control unit ( 94).

The controller 94 measures the temperature according to the input signal and controls the temperature of the air heated in the hot air fan so that the temperature of the air always stays in a certain range. The air supply line 98 is connected to the irradiation tube 50 and the three first and second light receiving tubes 70 and 72, respectively, but since the air supplied to the air supply line 98 is supplied from one hot air fan, the temperature sensor 66 ) May be provided only in one of the irradiation tube 50 and the first and second light receiving tubes 70 and 72.

In addition, the air supplied by being heated by the hot air blower completely removes the dust contained in the air by using a device such as a dust removal comparison filter (not shown).

According to the present invention configured as described above, since the degree of contamination is measured by the amount of light according to the wavelength of the light that passes through the sewage and the sewage, the management of the measuring device becomes easier even when the measuring device is used for a long time. It is effective to measure various kinds of pollutants included in a short time.

Claims (9)

In the pollution degree measuring device of the sewage to measure the pollution degree by using the light amount of the light passing through the sewage to the sewage, automatic pressure control unit to allow the sewage or fluid supplied from the outside into the measuring device at a constant pressure The main body unit allows the sewage or fluid introduced from the automatic pressure adjusting unit to freely fall inside the measuring device, the irradiating unit irradiating light rays to the sewage or fluid freely falling inside the main body unit, and irradiates the sewage from the irradiation unit. A light receiving unit for receiving a light beam passing through and outputting a signal corresponding to the light quantity for each wavelength of the received light, an air supply unit for supplying hot air to the light emitting unit and the light receiving unit to remove moisture in the light emitting unit and the light receiving unit, and a signal output from the light emitting unit and the light receiving unit Compare the reference value with the reference value and display the corresponding signal. A multi-component continuous contamination measuring device of water quality, comprising: a control unit for controlling. According to claim 1, wherein the automatic pressure control unit pressure control pipe 32, the sewage pressure is adjusted so that the sewage supplied through the sewage inlet pipe 20 supplied from the outside is always supplied to the measuring device at a constant pressure When the supply amount of wastewater supplied to the pressure control pipe 32 by the inflow pipe 20 is more than a predetermined range, the wastewater of the pressure control pipe 32 is automatically discharged to the outside by a predetermined amount. It is composed of a discharge pipe 28, which is installed in the lower portion of the pressure control pipe 32 so as not to exceed the discharge cock 34 for discharging the residue accumulated in the pressure control pipe 32 to the outside. Water quality multi-component continuous pollution measuring device. According to claim 1, In the irradiation tube 50 protruding into the inner wall of the main body 10, the lamp 54 for emitting light rays and the focusing lens for focusing the light rays emitted from the lamp 54 in one direction (58), passing through the first and second comparison filters 62a and 62b and the first and second comparison filters 62a and 62b that allow only the light of a specific wavelength of the light emitted from the lamp 54 to pass. A water quality multi-component continuous contamination measuring device, comprising: first and second comparison sensors (64a, 64b) for measuring the amount of light and outputting a corresponding value. 2. The light receiving unit according to claim 1, wherein the light receiving unit is provided with a first light receiving tube 70 provided in line with the light emitting tube 50, a second light receiving tube 72 provided at a right angle with the light emitting tube 50, and the second light receiving tube. A beam dividing the path of the light received by the first and second light receiving lenses 74a and 74b and the first light receiving lens 74a to condense the light received by the first and second light receiving tubes 70 and 72; By the splitter 78, the first and second light receiving comparison filters 82 and 84, and the second light receiving lens 74b, which allow only the light having a specific wavelength to pass through the light split by the beam splitter 78. The amount of light passing through the third light receiving comparison filter 86 and the first, second and third light receiving comparison filters 82, 84, and 86 through which only the light of a specific wavelength passes through the received light is measured and the corresponding value. Multi-component continuous pollution side of the water quality, characterized in that it is composed of first, second and third light receiving comparison sensor (88, 89, 90) Device. The method of claim 3, wherein the irradiation tube 50 is the temperature of the air supplied through the air supply line 98 provided in the irradiation tube 50 and the first light receiving tube 70 or the second light receiving tube (72). Water quality multi-component continuous pollution measuring device, characterized in that the temperature sensor 66 is detected and output to the control unit 94. 5. The water quality of claim 4, wherein the first and second light receiving tubes (70, 72) are protruded into the inner wall of the main body (10) to prevent the scattered light beams from entering. Component continuous contamination measuring device. According to claim 1, wherein the main body 10 is separated from each other so that the sewage supply pipe 24 for supplying external sewage to the main body 10 and the discharge pipe 14 for discharging the sewage to the outside have a predetermined distance. The multi-component continuous pollution measuring apparatus of water quality, characterized in that sewage is freely dropped from the sewage supply pipe (24) to the discharge pipe (14). 4. The apparatus of claim 3, wherein the first comparison filter (62a) filters only ultraviolet wavelengths, and the second comparison filter (62b) filters only visible light. 3. The first and second solenoid valves 40 of claim 2, wherein the sewage inflow pipe 20 allows the sewage or fluid to be selectively supplied to the pressure regulating pipe 32 under the control of the controller 94. Water quality multi-component continuous pollution measuring device characterized in that the 42)