Floating water quality monitoring device

Abstract

To provide a floating water quality monitoring device for measuring the quality of water treated at a sewage treatment plant.SOLUTION: A device comprises a cantilever part 10 including: a support base module 110 having a first wire retaining ring 111 formed on a lower side surface, a rotation-fixing hole penetrating from an upper side surface to another side surface at one end, and a column-shaft fixing hole formed spaced apart from the rotation-fixing hole toward the other end; a column shaft module 120; a support end; and a fixed plate module 130 having a fixed-pin receiving hole drilled so as to overlap the rotation-fixing hole. The device further comprises: a wire part connected at one end to the first wire retaining ring 111; and a floating sensor part 30 including a float module 310 that floats on water, a cover module 320 including a sensor connector formed on its lower surface, having one end of the wire part connected to its upper surface, and fixed to an upper surface of the float module 310, and a sensor module 330 connected at one end to a sensor connector and having the other end protruding from the float module 310 to measure water quality.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an apparatus for measuring the quality of water treated at a sewage treatment plant. [Background technology]

[0002] As living standards improve and industry develops, the amount of water used and the amount of polluted water discharged are increasing, which has led to an increase in the amount of sewage to be treated at sewage treatment plants.

[0003] Currently, most sewage treatment plants purify sewage by constructing facilities such as sedimentation facilities and biological reactors. These facilities purify the sewage through a number of stages, including flow control, pH adjustment, reduction, neutralization, reaction, coagulation, and treatment.

[0004] The wastewater treatment plant monitors the purification status at each stage and uses the extracted data to adjust each stage to manage the purification status of the wastewater.

[0005] The water quality measuring device installed in the reaction tank measures the dissolved oxygen and water quality of the treated water, etc., and grasps the state of the treated water, extracting status data for the treated water filled in the reaction tank.

[0006] However, conventional water quality measuring devices have the problem that they can tip over due to water currents that occur when the water level in a sewage treatment plant changes, making it impossible to accurately measure water quality.

[0007] In addition, if the device falls over, the sensor is exposed to the air, accelerating the sensor's failure. Furthermore, conventional water quality measuring devices are fixed to the handrails installed in the reaction tank, making it difficult for the manager to maintain the device. Furthermore, when foreign matter from the sewage gets attached, it is difficult to remove it. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Korean Patent No. 10-1503688 (Name of invention: Floating wireless off-gas measuring device, Publication date: March 12, 2015) Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention solves the problems of the device not being able to move flexibly with the water level changes and water flow in sewage treatment plants, which causes it to tip over and accelerates sensor failure, and the problems of foreign matter adhering and adhering to the upper surface, making maintenance of the device difficult.

[0010] The problems to be solved by the present invention are not limited to the above-mentioned problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0011] In order to achieve the above object, the floating-type water quality measuring device of the present invention comprises: a cantilever unit including: a support module having a first wire stop ring and a first pulley formed on a lower surface thereof, and having a rotation fixing hole penetrating from an upper surface to the other side and a pillar shaft fixing hole penetrating from the upper surface to the other side at one end thereof, the pillar shaft module having a lower end penetrating through the pillar shaft fixing hole of the support module and protruding outward from the support module; a support end connected to the lower end of the pillar shaft module protruding outward from the support module, and a fixing plate module having a fixing pin receiving hole that overlaps with the rotation fixing hole; a wire portion having one end connected to the first wire retaining ring; and a floating sensor unit including a float module that floats on water, a cover module having a sensor connector formed on its lower surface and one end of a wire unit connected to its upper surface and fixed to the upper surface of the float module, and a sensor module having one end connected to the sensor connector and the other end protruding from the float module to measure water quality; Includes.

[0012] The cover module may be formed in a shade shape that is inclined from top to bottom so that the fluid flows from top to bottom.

[0013] The support module may include a pulley formed on its underside, a housing spaced apart from the pulley on one side, a first wheel installed on one side of the housing, and a second wheel installed on the other side of the housing, and may include a wire detachment prevention body that protrudes a wire portion between the first wheel and the second wheel.

[0014] The pillar module includes a pillar fixing ring formed on an upper end thereof and connected to one end of a fixing wire, and the support module includes a second wire fastening ring formed on an upper surface thereof and connected to the pillar fixing ring and connected to the other end of the fixing wire.

[0015] The sensor module includes a first sensor body that measures the dissolved oxygen (DO) of the water, through an Nth sensor body that measures water quality such as the hydrogen ion concentration (pH), temperature, and oxidation-reduction potential (ORP) of the water, chemical oxygen demand (COD), and is detachable from the sensor assembly.

[0016] The fixing plate module may further include at least one bottom fixing hole spaced apart from the fixing pin receiving hole and configured to receive a fixing bolt.

[0017] The device may include a first weight connected to the wire portion located between the first wire stop ring and the first pulley.

[0018] The float module can be formed from a doughnut-shaped plastic tube. [Effects of the Invention]

[0019] The floating water quality measuring device according to the present invention can measure water quality by maintaining a constant posture and position even when the amount of treated water in the aeration tank increases or decreases and the treated water flows. In addition, the present invention prevents foreign matter from adhering to the upper surface of the buoyancy part and allows it to flow naturally, thereby preventing contamination of the upper surface of the buoyancy part with foreign matter.

[0020] Furthermore, in the present invention, one end of the cantilever section is installed on the upper surface of the wall of the water quality measurement equipment, and the cantilever section rotates clockwise and counterclockwise when in the installed position, making it easier for managers to maintain the cantilever section. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a diagram showing a floating water quality measuring device according to one embodiment of the present invention. [Figure 2] FIG. 2 is a diagram showing the cantilever portion of FIG. 1. [Figure 3] FIG. 2 is a diagram showing the cantilever portion of FIG. 1. [Figure 4] FIG. 2 is a diagram showing the floating sensor unit of FIG. 1. [Figure 5] FIG. 2 is a diagram showing the floating sensor unit of FIG. 1. [Figure 6] 6 is a diagram showing a first sensor module to an N-th sensor module connected to the sensor assembly of FIG. 5. FIG. [Figure 7] 1 is a diagram showing an operating state of a floating-type water quality measuring device according to an embodiment of the present invention; [Figure 8] 10A and 10B are diagrams showing a state in which the support module of the cantilever portion of the present invention rotates. [Figure 9] 10A and 10B are diagrams showing a state in which the support module of the cantilever portion of the present invention rotates. [Figure 10] 10 is a diagram showing the state in which the cover module of the floating sensor unit of the present invention is formed in a shade shape and allows water to flow downward. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] The advantages and features of the present invention, as well as the apparatus for achieving them, will become apparent from the following detailed description of the embodiments taken in conjunction with the accompanying drawings, although the present invention is not limited to the embodiments disclosed below.

[0023] The present invention may be realized in a variety of different forms. The embodiments described herein are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art to which the present invention pertains. The scope of the present invention is defined by the claims. Additionally, the same reference numerals used throughout this specification refer to the same elements.

[0024] To simplify and clarify the description of the present invention, the floating-type water quality measuring device of the present invention will be generally described below with reference to Fig. 1. Then, the components constituting the present invention will be described in detail.

[0025] The floating water quality measuring device 1 of the present invention can maintain a constant posture and position even when the amount of treated water in the water quality improvement container tank (aeration tank) increases or decreases and the treated water flows, allowing for stable measurement of water quality. Furthermore, the cantilever portion 10 of the floating water quality measuring device 1 of the present invention can rotate clockwise and counterclockwise when installed. This allows managers to rotate the cantilever portion 10 of the present invention to perform maintenance on the device more easily than with conventional water quality measuring devices.

[0026] Furthermore, in the floating-type water quality measuring device 1 according to the present invention, the cover module of the floating sensor unit 30 is formed in a shade shape, so that even if water rises up onto the cover module of the floating sensor unit due to the water flow, the water flows downward. At the same time, water and foreign matter are prevented from accumulating on the upper surface of the floating sensor unit, so that the floating sensor unit is not contaminated.

[0027] Such a floating-type water quality measuring device 1 includes a cantilever part 10, a wire part 20, and a floating sensor part 30 as components.

[0028] The components of the floating-type water quality measuring device will be specifically described below with reference to FIGS.

[0029] Figures 2 and 3 are views showing the cantilever part of Figure 1, Figures 4 and 5 are views showing the floating sensor part of Figure 1, and Figure 6 is a view showing the first to Nth sensor modules connected to the sensor assembly of Figure 5.

[0030] The cantilever unit 10 is installed vertically on the wall of the water quality improvement vessel (aeration vessel, C) and supports the wire unit 20 and the floating sensor unit 30. The cantilever unit 10 protrudes from the wall of the water quality improvement vessel (aeration vessel), allowing the floating sensor unit 30 to be positioned at a specific location in the water quality improvement vessel (aeration vessel, C) via the wire unit 20. The cantilever unit 10 also prevents the wire unit 20 from separating from the cantilever unit 10 and the floating sensor unit 30 from separating from the wire unit 20, even when the floating sensor unit 30 sways due to water currents. The water current is generated by oxygen aeration rising from below the water quality improvement vessel (aeration vessel, C). As shown in FIG. 2, the cantilever unit 10 includes a support module 110, a column module 120, and a fixing plate module 130. The support module 110 is formed of a hollow rectangular tube, i.e., a square tube. The support module 110 includes a first wire stop ring 111 and a first pulley 112 formed on its lower surface. The support module 110 also includes a rotation fixing hole 113 on one end, i.e., the left side, that penetrates from the upper surface to the other side, and a column shaft fixing hole 114 that is spaced apart from the rotation fixing hole 113 toward the other end and penetrates from the upper surface to the other side. The support module 110 may also include a wire detachment prevention member 115 formed on its lower surface and spaced apart from the pulley 112, and a second wire detachment ring 116 formed on its upper surface. The wire detachment prevention member 115 is composed of a housing 1150 connected to the support module 110, a first wheel 1151 installed on one side of the housing, and a second wheel 1152 installed on the other side of the housing spaced apart from the first wheel 1151. A gap B, i.e., a gap through which the wire portion protrudes, is formed between the first wheel 1151 and the second wheel 1152. One end of the wire portion may protrude through the gap B and be connected to the floating sensor portion 30 .

[0031] The wire detachment prevention body 115 prevents the wire part 20 from descending into the wire discharge gap B and coming off the pulleys 112, 117 due to the water current generated in the water quality improvement container tank (aeration tank). The second wire stop ring 116 is connected to the column shaft module 120 and the fixed wire A to prevent the support base module 110 from tipping forward.

[0032] The lower end of the shaft module 120 passes through the shaft fixing hole 114 of the support module 110 and protrudes outward from the support module 110, and is installed horizontally on the wall of the water quality improvement vessel (aeration vessel). At this time, the shaft module 120 is connected to the fixing plate module 130, which is directly connected to the wall of the water quality improvement vessel (aeration vessel). The fixing plate module 130 will be described after the description of the shaft module 120.

[0033] The support module 110 is installed vertically on the pillar module 120, which is installed horizontally to the wall of the water quality improvement container tank (aeration tank, C). The pillar module 120 serves as an axis that allows the support module 110 to rotate clockwise and counterclockwise around the pillar module 120 as a central axis. Furthermore, the pillar module 120 includes a pillar fixing ring 121 formed on its upper end, and the second wire stop ring 116 of the support module 110 and the fixing wire A are firmly connected through the pillar fixing ring 121, preventing the support module 110 from tipping forward.

[0034] The fixing plate module 130 is fixed to the upper surface of the wall of the water quality improvement vessel (aeration vessel) and separates the support base module 110 from the upper surface of the wall of the water quality improvement vessel (aeration vessel) so that the support base module 110 can rotate clockwise and counterclockwise on the fixing plate module 130. The fixing plate module 130 is formed in a plate shape and includes a support end 131 formed at one end. The fixing plate module 130 includes a fixing pin receiving hole 132 formed at a position that overlaps with the rotation fixing hole 113 of the support base module 110 when the lower end of the pillar module 120 is connected to the support end 131. Here, the fixing pin receiving hole 132 is a hole that receives the lower end of the fixing pin 134. When the fixing pin 134 passes through the rotation fixing hole 113 and has its lower end inserted into the fixing pin receiving hole 132, it prevents the support base module 110 from rotating clockwise or counterclockwise with the fixing plate module 130 and the column module 120. The fixing plate module 130 further includes a bottom fixing hole 133 spaced apart from the fixing pin receiving hole 132. For example, as shown in FIG. 3, the fixing plate module 130 may be formed with a first bottom fixing hole 1331 spaced apart from the fixing pin receiving hole 132 on one side and a second bottom fixing hole 1332 spaced apart from the fixing pin receiving hole 132 on the other side. The first bottom fixing hole 1331 and the second bottom fixing hole 1332 receive fixing bolts inserted into the upper surface of the wall of the water quality improvement vessel tank (aeration tank, C), thereby firmly fixing the fixing plate module 130 to the wall of the water quality improvement vessel tank (aeration tank, C).

[0035] The wire unit 20 is a wire that connects the floating sensor unit 30 to the cantilever unit 10. One end of the wire unit 20 is connected to the first wire stop ring 111, and the other end is connected to the floating sensor unit 30, so that the floating sensor unit 30 is connected to the cantilever unit 10. In this case, the wire unit 20 is hung on a first pulley 112 and a second pulley 117, as an example of at least one pulley 112 formed on the underside of the support module 110, with one end connected to the first wire stop ring 111 of the support module 110, as shown in FIG. 3, and the other end passes through a wire detachment prevention member 115 to be connected to the floating sensor unit 30. When the floating sensor unit 30 ascends between the first pulley 112 and the second pulley 117, the wire between the first wire stop ring 111 and the first pulley 112 and between the first pulley 112 and the second pulley 117 hangs down and becomes loose. On the other hand, when the floating sensor unit 30 descends, the wire between the first wire stop ring 111 and the first pulley 112 and between the first pulley 112 and the second pulley 117 rises up and becomes taut.

[0036] 1, the first weight 410 is installed on the wire between the first wire stop ring 111 and the first pulley 112, and the second weight 420 is installed on the wire between the first pulley 112 and the second pulley 117, so that a tensile force corresponding to the floating position of the floating sensor unit 30 is generated. As a result, the tensile force generated between the first wire stop ring 111 and the first pulley 112 and between the first pulley 112 and the second pulley 117 changes as the floating sensor unit 30 rises and falls, so that the tensile force is maintained while the wire unit 20 is connected to the floating sensor unit 30 from the wire detachment prevention body 115. In this way, when the water level rises and the floating sensor unit floats, the wire unit 20 moves down due to the weight of the first weight 410 and the second weight 420 and does not get tangled with the floating sensor unit 30 .

[0037] The floating sensor unit 30 floats in the water quality improvement container tank (aeration tank, C) and measures the quality of water filled in the water quality improvement container tank (aeration tank, C). The floating sensor unit 30 includes a float module 310, a cover module 320, and a sensor module 330. Here, the float module 310 is a float that floats on water. For example, the float module 310 may be formed of a doughnut-shaped plastic tube as shown in FIG. 5. A cover module 320 is installed on the upper surface of the float module 310. The cover module 320 serves as a cover that covers the upper surface of the float module 310. The cover module 320 has a sensor connector 321 formed on the lower surface and one end of a wire connected to the upper surface, and may be fixed to the upper surface of the float module 310. The cover module 320 may be formed in a shade shape as shown in FIG. 4.

[0038] 6(a), the sensor module 330 may be composed of a first sensor body 331 for measuring a first characteristic of water, i.e., dissolved oxygen (DO), a second sensor body 332 for measuring a second characteristic of water, i.e., potential hydrogen (pH), a third sensor body 333 for measuring a third characteristic of water, i.e., temperature, and an Nth sensor body 33N for measuring oxidation-reduction potential (ORP) and chemical oxygen demand (COD). The first sensor body 331 to the Nth sensor body 33N are detachable from a sensor connecting body 321 formed on the lower surface of the cover module 320. The sensor module 330 may also include a data communication device to measure the characteristics of water filled in the water quality improvement container tank (aeration tank, C) and transmit the measured values ​​to a data transmission device (D). The data transmission device (D) transmits the received data to a control center that controls the operation of the aeration module (not shown) installed at the bottom of the water quality improvement tank (aeration tank).The control center can then control the operation of the blower of the aeration module based on the data transmitted from the data transmission device.

[0039] In this way, the data measured by the sensor module 330 is transmitted to the control center, and the operation of the aeration pipe module in the water quality improvement container tank (aeration tank) is controlled based on the data transmitted to the control center, so that the floating water quality measuring device 1 can become a component of a system that measures and manages water quality in real time.

[0040] Hereinafter, the operation of the floating-type water quality measuring device 1 of the present invention will be specifically described with reference to FIGS.

[0041] As shown in FIG. 7, the floating water quality measuring device 1 of the present invention measures the characteristics, i.e., water quality, of water filled in a water quality improvement container tank (aeration tank, C). In the floating water quality measuring device 1, even when water is stirred and a current is generated by an aeration pipe installed in the water quality improvement container tank (aeration tank, C), the floating sensor unit 30 automatically moves up and down, allowing the device to maintain the water quality measurement position. Even if the stirring water touches the cover module 320, the water flows downward, preventing water from accumulating in the cover module 320. Furthermore, as described above, the cantilever unit 10 of the floating water quality measuring device 1 includes the support module 110, the pillar axis module 120, and the fixed plate module 130. The support module 110 can rotate clockwise or counterclockwise around the fixed plate module 130, with the pillar axis module 120 as the central axis. 8(a), when the lower end of the fixing pin 134 is inserted into the fixing pin receiving hole 132 of the fixing plate module 130, the support base module 130 may be in a parallel position with the fixing plate module 130 fixed to the bottom, i.e., may be fixed to the fixing plate module 130. In addition, as shown in FIG. 8(b), when the support base module 110 is separated from the rotation fixing hole 113 and the fixing pin receiving hole 132, it may rotate clockwise. Then, it may rotate counterclockwise again and be fixed to the fixing plate module 130 via the fixing pin 134.

[0042] 9, an administrator can easily perform maintenance on the support module 110, the pulleys 112, 117 connected to the support module 110, and the wire detachment prevention member 115 by rotating the support module 110 clockwise and counterclockwise. In addition, an administrator can easily scoop up the wire unit 20 connected to the support module 110 and the floating sensor unit 30 connected to the wire unit 20 from the water quality improvement container tank (aeration tank, C), and replace the first sensor unit 331 connected to the floating sensor unit 30 with any one of the second sensor unit 332, the third sensor unit 333, or the Nth sensor unit (33N).

[0043] As described above, the cover module 320 has a shade-shaped cover module 320 installed on the upper side. When swaying water touches the upper side of the cover module, the shade-shaped cover module 320 allows the water to flow from the top to the bottom, preventing water and foreign matter from remaining on the cover module 320. The shade-shaped cover module 320 allows water and foreign matter to flow away, preventing stubborn water stains and foreign matter from accumulating on the cover module. This allows the administrator to more easily maintain the cover module 320 and the float module 310.

[0044] Although the present invention has been described above with reference to the accompanying drawings, those skilled in the art will recognize that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. [Explanation of symbols]

[0045] 1. Floating water quality measuring device 10 Cantilever part 110 Support module 111 First wire stop ring 112 1st pulley 113 Rotating and fixed hole 114 Pillar shaft fixing hole 115 Wire detachment prevention body 1150 Housing 1151 First Wheel 1152 Second Wheel 116 Second wire stop ring 117 Second pulley 120 column axis module 121 Column shaft fixing ring 130 Fixing Plate Module 131 Support end 132 Fixing pin accommodation hole 133 Bottom fixing hole 134 Fixing pin 20 Wire section 30 Floating sensor unit 310 Floating Body Module 320 Cover Module 321 Sensor Link 330 Sensor Module 40 weights 410 First weight 420 Second weight A Fixed wire B Gap C Water quality improvement container tank (aeration tank) D Data transmission equipment E water

Claims

1. a cantilever unit including: a support module having a first wire stop ring formed on its underside, and having a rotation fixing hole formed at one end thereof, the rotation fixing hole passing through from its upper side to its other side, and a pillar shaft fixing hole formed at one end thereof, the pillar shaft module having a lower end passing through the pillar shaft fixing hole of the support module and protruding outward from the support module; a support end connected to the lower end of the pillar shaft module protruding outward from the support module; and a fixing plate module having a fixing pin receiving hole formed therein, the fixing pin receiving hole overlapping the rotation fixing hole; a wire portion having one end connected to the first wire retaining ring; and a floating sensor unit including a float module that floats on water, a cover module having a sensor connector formed on its lower surface and one end of a wire part connected to its upper surface and fixed to the upper surface of the float module, and a sensor module having one end connected to the sensor connector and the other end protruding from the float module to measure water quality; A floating water quality measuring device comprising:

2. The cover module is 2. The floating-type water quality measuring device according to claim 1, which is formed in a shade shape inclined from top to bottom so that fluid flows from top to bottom.

3. The support module is 2. The floating water quality measuring device of claim 1, comprising: a pulley formed on the underside; a housing spaced apart from the pulley on one side; a first wheel installed on one side of the housing; and a wire detachment prevention body that allows the wire portion to protrude between the first wheel and the second wheel.

4. The column axis module is a column shaft fixing ring formed at an upper end thereof and connected to one end of a fixing wire; The support module is 2. The floating water quality measuring device according to claim 1, further comprising a second wire fastening ring formed on the upper surface thereof and connected to the other end of the fixing wire connected to the column shaft fixing ring.

5. The sensor module is 2. The floating water quality measuring device according to claim 1, comprising a first sensor body for measuring dissolved oxygen (DO) in water to an Nth sensor body for measuring hydrogen ion concentration (pH), oxidation-reduction potential (ORP), temperature, and chemical oxygen demand (COD) in water, and which is detachable from the sensor assembly.

6. The fixed plate module is 2. The floating water quality measuring device according to claim 1, further comprising at least one bottom fixing hole spaced apart from the fixing pin receiving hole and configured to receive a fixing bolt.

7. 4. The floating water quality measuring device according to claim 3, further comprising a first weight connected to a wire portion located between the first wire retaining ring and the first pulley.

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