KR101187998B1 - Monitoring system for sewage passage - Google Patents

Abstract

PURPOSE: A sewer pipe monitoring system is provided to monitor real time condition information of the sewer pipe by various measuring sensors formed on the sewer pipe. CONSTITUTION: A collecting part(10) is installed in a sewer pipe and collects various measurement data. An operation server(20) inputs history data about the sewer pipe and regional information including the population and area size of a managing area. The operation server receives the collected measurement data through wired and wireless network and analyzes condition information of the sewer pipe. A manager terminal(30) requests the condition information by being connected to the operation server. [Reference numerals] (10) Collecting part; (20) Operation server; (200) Input means; (30) Manager terminal; (AA) Sewer pipe 1; (BB) Sewer pipe 2

Description

Monitoring System For Sewage Passage

The present invention relates to a sewage pipe monitoring system, which can monitor real-time situation information of sewage pipes from various measurement sensors provided on the sewage pipes, and in particular, a sulfur gas sensor is used to analyze corrosion factors of sewage pipes and to measure sediment accumulation in sewage pipes. Therefore, the sewage pipe monitoring system can be used to diagnose and evaluate the sewage pipe, and to determine the maintenance time such as the dredging time of sewage pipe as well as the age of the sewage pipe.

In general, the actual inflow and water quality are important factors that affect the efficiency of the entire treatment process in the operation of sewage terminal treatment facilities. Furthermore, sewage that is not collected by sewage pipes can only flow into the discharge area or groundwater. The insolvency of conduits will adversely affect the overall water quality.

In this regard, sewage pipes in the area are buried underground, so it is difficult to inspect and check the function of the pipes.

In addition, it is necessary to accurately identify the degree of failure of sewage pipes, and to plan, maintain and manage the sewage pipe maintenance based on this. However, the conventional survey and evaluation methods were very inefficient in terms of time, economic difficulties and accuracy.

In addition, a lot of time and expense are spent investigating the occurrence and extent of defects after construction, and the existing methods of conduit inspection such as visual inspection, closed-circuit TV (CCTV) survey, dye trace survey, acoustic survey method, etc. This complexity and lack of objectivity makes it difficult to obtain quantified measurement results and evaluation data.

Accordingly, in order to maintain and manage the maintenance and management of the sewage pipe, there has been suggested a sewage pipe monitoring system that receives various sewage pipe state information, but this also has a problem in that it is not easy to investigate the accurate aging or failure degree of the sewage pipe.

In particular, “crown” corrosion on concrete sewer pipes is a significant issue in determining whether sewage pipes are aged or insolvent. Corrosion of these conduits occurs in areas with high sulfate concentrations.

Indeed, hydrogen sulfide (H2S) or its aqueous solution, hydrosulfuric acid, is a weaker acid than carbonic acid and has little effect on quality concrete, but crown corrosion in gravity type sewers Happening, hydrogen sulfide is the indirect cause.

Gravity sewers create a unique environment that is suitable for the biological changes of sulfides in sewage, which requires oxygen, and sulfates are reduced if sulfide ions are not supplied from the air in the sewer by sufficient natural reaeration. And microorganisms capable of oxidizing hydrogen sulfide to sulfuric acid.

When sewage flows into sewer pipes, or in some other way, some of these microorganisms easily attach to the walls and crowns of the sewer pipes, causing sulfur reducing bacteria to oxidize hydrogen sulfide to sulfuric acid, causing the concrete to corrode.

Therefore, in the determination of aging or failure of sewage pipes, corrosion of conduits by hydrogen sulfide acts as an important factor.The measurement and monitoring of these hydrogen sulphides should be conducted to investigate the degree of failure of objective sewage pipes. There is an urgent need to introduce a new monitoring system in which huge investments can be made efficiently.

Accordingly, the present invention has been made in order to solve the above problems, while establishing a sensor network for a plurality of sewage pipes installed on a specific management target area, a sensor capable of measuring the hydrogen sulfide concentration generated in the pipe The purpose of the present invention is to provide a sewerage monitoring system capable of identifying and monitoring the aging of an objective sewerage pipe based on the measurement data collected and collected therefrom.

In addition, it measures and collects the flow rate, water level, flow rate and water quality data of the sewage pipes and the sewage pipes, and through these collected data, the combined Sewer Overflows (CSO), infiltration and inflows (I / I) Infiltration / Inflow) as well as the sewage pipe monitoring system that can analyze and monitor the water quality of sewage is another purpose.

In order to achieve the above object, the sewage pipe monitoring system of the present invention collects state information on a plurality of sewage pipes installed in a specific management target area and in a sewage pipe monitoring system for monitoring the same, which is installed in the sewage pipe and collects various measurement data. A collection unit for performing; And input means for inputting regional information including the population and area of the management target area and history information about a plurality of sewage pipes installed in the corresponding area, and transmitting measurement data collected through the wired / wireless communication network from the collection unit in real time. An operation server for receiving, analyzing, storing, and outputting state information of the sewer pipe; And a manager terminal for requesting the state information of the sewage pipe in connection with the operation server and receiving and monitoring the state information data stored in the operation server.

As an example, the collection unit includes a gas sensor for measuring the hydrogen sulfide gas concentration generated from the sewage conduit is installed on the manhole to which one or more sewage conduits are concentrated, and the operation server receives the data measured from the gas sensor It is characterized by analyzing and evaluating the sewage conduits by analyzing and determining the aging degree of the sewage conduits based on them.

As one example, the operation server is characterized by analyzing the data measured from the gas sensor to determine the dredging time by predicting the amount of sediment deposition of the sewage pipe.

As an example, the collecting part includes mounting means configured to fluidly lift and lower the gas sensor according to the water level of the manhole, wherein the mounting means includes one or more guide rails and the gas sensor coupled along a sidewall of the manhole. It is characterized in that it is coupled to the lower portion of the buoyancy sphere is installed to flow along the guide rail.

As one example, the mounting means is installed so as to be able to flow in the lower portion of the guide rail is characterized in that it further comprises a stopper for limiting the downward flow of the gas sensor.

As an example, the mounting means may further include a flow ring installed on the guide rail, a lead wire fixed to the upper manhole through the flow ring from the gas sensor, and a weight mounted on the lead wire. to be.

As an example, the collection unit may be a plurality of measuring sensors for measuring and collecting the flow rate, water level, flow rate and water quality data for the pressure and sewage of the sewage pipe, rainfall sensors for measuring rainfall, and the various types of measurement sensors And an information collector for collecting data collected from the rainfall sensor and a communication module for transmitting the measurement data collected by the information collector to the operation server.

As one example, the operation server is characterized by analyzing the amount of overflow (CSO: Combinded Sewer Overflows), intrusion and inflow (I / I: Infiltration / Inflow) based on the measurement data transmitted from the collection unit .

As one example, the operation server is characterized in that the analysis (Exfiltration) on the sewage pipe based on the measurement data transmitted from the collection unit.

As an example, the operation server is characterized by analyzing the raw unit of sewage generation amount and pollution load based on the measurement data transmitted from the collection unit and the information input from the input means.

As an example, the operation server may analyze the amount of sewage pipes through the analysis of combined Sewer Overflows (CSOs), Infiltration and Inflows (I / I: Infiltration / Inflow), Exfiltration on the sewage pipes, and raw unit information. It is characterized by judging the degree of insolvency and determining the timing of renovation and determining the priority.

As one example, the operation server further includes a database that stores the measurement data received from the collection unit and the analysis result data, the item for the period (flow rate, flow rate, based on the result data stored in the database) It analyzes the correlation between the data trends by water level and rainfall, and the items (flow rate, flow rate, and water level) for each point, the hourly, point-by-point search and rainfall event analysis of water quality data.

As one example, the operation server detects in real time the presence or absence of abnormality and power consumption for the various types of measuring devices constituting the collection unit, and provides the administrator with the device and its failure state when detecting the abnormal state.

As one example, the operation server is characterized in that the transmission of the failure status information through any one of the SMS, E-mail and Fax information transmission medium.

As an example, the operation server grasps the connection status of sewage conduits provided on the management target area and the concentration of conduits according to the progress of the sewage, and provides them to the manager terminal, wherein the manager terminal is based on GIS. Characterized in that the data provided from the operation server including the sewage pipe map providing unit of the expression through the map.

According to the sewage conduit monitoring system according to the present invention, the sensor has a sensor capable of measuring the hydrogen sulfide concentration generated in the conduit, and based on the measured data collected therefrom, it is possible to grasp the aging degree of the objective sewage conduit and the pressure of the sewage conduit. Measures and collects flow rate, level, flow rate and water quality data for sewage and sewage. Through this measurement data, as well as the combined sewer overflows (CSO), infiltration and inflows (I / I: Infiltration / Inflow), It is effective to analyze and monitor various information such as the quality of sewage.

In addition, the above analysis data can be used as a basic data for establishing quantification of aging and insolvency of sewage pipes, and thus, decision support tools for maintenance plan and execution plan of sewage pipes and sewage treatment facilities. It can be used as a system, and it can be very efficient in terms of time and economics by quickly and accurately grasping the degree of failure of sewage pipe, and by rationally calculating the amount of generated sewage and pollution load, it is possible to prevent excessive design of sewage terminal treatment facilities and operation management. It is very effective.

1 is a schematic view showing the configuration of the sewage pipe monitoring system according to the present invention.
2 is a schematic view showing a collector according to an embodiment of the present invention.
3 and 4 are views showing the configuration of a gas sensor according to an embodiment of the present invention.
5A and 5B show an installation example of the gas sensor of FIG. 3.
6 is a graph showing the proportional relationship between the amount of sediment deposition and hydrogen sulfide in conduits;
7 is a schematic diagram showing an operation server according to an embodiment of the present invention.

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

1 is a schematic view showing the configuration of the sewage pipe monitoring system according to the present invention, Figure 2 is a schematic diagram showing a collecting unit according to an embodiment of the present invention. And Figures 3 and 4 according to an embodiment of the present invention It is a figure which shows the structure of a gas sensor, and FIG. 5A and 5B is a figure which shows the installation example about the gas sensor of FIG. 6 is a graph showing the proportional relationship between the amount of sediment deposition in the conduit and hydrogen sulfide, Figure 7 is a schematic diagram showing an operation server according to an embodiment of the present invention.

The present invention relates to a sewage pipe monitoring system for collecting and monitoring status information on a plurality of sewage pipes installed in a specific management target area. The collection unit 10 is installed in a sewage pipe and collects various measurement data. Measurement information collected through the wired / wireless communication network from the collection unit 10 including an input means 200 for inputting the regional information including the population, area of the management target area and the history information for a plurality of sewage pipes installed in the area. Receives data in real time and requests the state information of the sewage pipe in connection with the operation server 20 and the operation server 20 for analyzing and storing and outputting the state information of the sewage pipe and the state information stored in the operation server 20 It is configured to include a manager terminal 30 for receiving data and monitoring it.

The collection unit 10 measures and collects measurement data for a plurality of sewage pipes installed in a management target area and transmits the measured data to the operation server 20 through a wired / wireless communication network. The USN (Ubiquitous Sensor Network) on the sewage pipe Technology to enable the collection of one or more measurement data measured from various measuring instruments.

As a measuring device of the collection unit 10, a plurality of measurement sensors 110 for measuring and collecting the flow rate, water level, flow rate and water quality data for the pressure and sewage of the sewage pipe and rainfall sensor 120 for measuring rainfall. In addition, the collection unit 10 in the information collector 130 and the information collector 130 for collecting the data collected from the various types of measurement sensor 110 and rainfall sensor 120 The information data of the information collector 130 is transmitted to the operation server 20 in real time, including the communication module 140 for transmitting the collected data to the operation server 20.

In this case, as an example of the communication module 140 for communicating with the operation server 20, a conventional modem for performing TCP / IP communication using a vDSL network may be applied, the information data collected through the It is transmitted to the operation server (20).

In addition, the multi-sensors for measuring pressure, flow rate, water level, flow rate, water quality data can be variously applied through well-known technology, a detailed description thereof will be omitted.

Meanwhile, according to an embodiment of the present disclosure, the collection unit 10 further includes a gas sensor 100 installed on the manhole 1 to which one or more sewage conduits 2 are focused, as shown in FIG. 3. It may include.

The gas sensor 100 is for measuring the hydrogen sulfide gas concentration generated from the sewage conduit (2), the measurement data is transmitted to the operation server 20 described below, the hydrogen sulfide measured from the operation server 20 Concentrations provide insight into the age of conduits.

This is because hydrogen sulfide (H2S) is generated by reducing oxalate in the biofilm formed in the sewage conduit, and the hydrogen sulfide is oxidized by microorganisms and oxidized to sulfuric acid to cause corrosion of conduit. By predicting the degree of corrosion, the condition of the conduits will be diagnosed and evaluated.

At this time, the gas sensor 100 is preferably installed to be as close as possible to the position where the hydrogen sulfide gas is generated to minimize dilution by other atmosphere.

For example, as shown in FIG. 3, the collection unit 10 may further include a mounting means, and the gas sensor 100 may be configured to move upward and downward in accordance with the water level of the manhole 1.

The mounting means may be coupled to one or more guide rails 160 coupled along the sidewall of the manhole 1 and the buoyancy hole 150 coupled to the lower portion of the gas sensor 100 and installed to flow along the guide rail 160. ).

At this time, the structure of the guide rail 160 and the buoyancy sphere 150 in conjunction with this may be implemented in various ways, according to an embodiment of the present invention as shown in Figure 5a the guide rail 160 It may be configured in a pipe shape, the buoyancy sphere 150 may be composed of a flow pipe 161 formed to surround the outer peripheral surface of the pipe-shaped guide rail (160a) on one side thereof.

According to such a structure, the flow pipe 161 may be raised or lowered along the pipe-type guide rail 160a, and the buoyancy hole 150 and the gas sensor 100 coupled to the flow pipe 161 are provided. It will also work together.

In addition, according to another embodiment, as shown in FIG. 5B, the guide rail 160b according to the present embodiment has a '170' -shaped groove 170 formed inward along its length direction, and the buoyancy sphere ( 150 has a flow roller 162 flowing along the groove 170 on its side.

Here, the guide rails (160a, 160b) are configured to be formed on both sides so that the buoyancy sphere 150 is more stable to lift on the manhole (1) and accordingly the flow pipe 161 or flow roller 162 is also configured to correspond to the pair so that the buoyancy hole 150 is torsion free in the lifting.

In addition, the mounting means is further provided with a stopper 190 in the lower portion of the guide rail, the stopper 190 is configured to adjust the position so as to be able to flow in the lower portion of the guide rail (160a, 160b) By limiting the downward flow of the gas sensor 100, the gas sensor 100 is protected from sewage contained in the manhole 1, and in the absence of rain, the gas sensor 100 is positioned above the invert. Do not disturb the drainage of sewage.

In addition, the mounting means is a flow ring 181 installed on the guide rail 160 as shown in Figure 4, and the manhole (1) through the flow ring 181 from the gas sensor 100 It may further include a lead wire 182 fixed to the upper portion and a weight 183 mounted on the lead wire 182.

The lead wire 182 is a cable for transmitting data measured by the gas sensor 100, one end of which is electrically connected to the gas sensor 100, and the other end thereof is fixed to the upper part of the manhole 1. In the lifting operation of the gas sensor 100, the 182 may be prevented from being twisted or interfered with the guide rail 160 by the action of the weight 183.

Meanwhile, the operation server 20 includes an input means 200 and a communication means, and the input means 200 includes not only a population and an area of a management area, but also a housing type, a sewage removal method, a flush rate, and the like. In addition to local information, history information on a plurality of sewage pipes installed in a corresponding region, that is, history information such as location information, construction information, quasi-setting information, and specification information of the sewage pipe is input. This input information is used as basic information in the analysis process of the operation server 20 described below.

In addition, the communication means receives the information data transmitted from the communication module 140 of the collection unit 10 by using a conventional wired or wireless communication network.

On the other hand, the operation server 20 receives the information data transmitted from the collection unit 10 and the data input through the input means 200 in real time to analyze and store and output the state information of various sewage pipes through this And, grasp the information requested from the manager terminal 30 described below and provides the information corresponding to the request information to the manager terminal (30).

Specifically, as shown in FIG. 7, the operation server 20 includes a sewage pipe evaluator 210, a quantity analysis unit 220, a sewage pipe leakage leak analyzer 230, a pollution load unit analysis unit 240, and The sewer pipe failure degree analysis unit 250 is included.

The sewage pipe evaluator 210 analyzes the sulfide gas measurement data transmitted from the gas sensor 100 described above to diagnose and evaluate the sewage pipe, thereby determining the objective aging degree of the sewage pipe.

At this time, in the diagnosis and evaluation of the sewage pipe, the sewage pipe of the history information of the sewage pipe that is input from the input means 200 of the operation server 20, that is, the sewage pipe of the sewage pipe according to the specifications of the sewage pipe, that is, the conduit Naturally, evaluation information can be different.

In addition, the sewage pipe evaluator 210 analyzes the data measured from the gas sensor 100 to predict the amount of sediment deposition of the sewage pipe. That is, the sewage pipe evaluator 210, as shown in Figure 6, as the hydrogen sulfide rises in proportion to the amount of sediment in the conduit as the progress of corrosion of the pipeline through the hydrogen sulfide gas concentration measured by the gas sensor 100 Of course, when the hydrogen sulfide gas concentration reaches a certain value, it is to predict the amount of sediment deposition in the conduit to determine the dredging time accordingly.

In this way, the sewage pipe evaluator 210 can determine the overall aging and maintenance time of the conduit by grasping the dredging time according to the corrosion state of the pipeline and the amount of sediment deposition through the hydrogen sulfide gas concentration.

The quantity analyzing unit 220 analyzes the amount of overflowed water (CSO: Combinded Sewer Overflows), the intrusion and the amount of inflow (I / I: Infiltration / Inflow) based on the data transmitted from the collection unit 10.

As a method of analyzing invasive water, four methods of evaluating water consumption, daily maximum / minimum flow rate / daily maximum flow rate method, and nighttime living sewage evaluation method are applicable.

The water consumption evaluation method evaluates the value obtained by subtracting the estimated sewage generation from the water consumption by the average value of the measured flow rate.

That is, infiltration water = measured sewage water-(water consumption × sewage conversion rate), the sewage conversion rate is usually 0.8 ~ 0.9 is applied.

The daily maximum / minimum flow rate evaluation method evaluates the value of the daily minimum sewage calculated from the average value of the measured flow rate minus the night factory wastewater generation as the intrusion quantity, where the intrusion quantity = the daily minimum sewage quantity-the factory wastewater quantity (24 hours operation basis).

The daily maximum flow rate evaluation method evaluates the inflow water by subtracting the minimum value of the daily minimum sewage from the maximum value of the daily minimum sewage calculated from the measured flow rate. Lastly, the night life sewage evaluation method evaluates the inflow water by subtracting the night life sewage and factory wastewater from the daily minimum sewage of the measured flow rate.

In the present invention, the average of the remaining minus the maximum and the minimum of the intrusion water calculated by the four calculation methods is regarded as the intrusion water and analyzed comprehensively.

In the case of analyzing the inflow water, it is determined by the flow rate during the rainfall and the average dry season flow rate, and selects the total inflow quantity by subtracting the average dry flow rate from the flow rate during the rainfall.

On the other hand, the sewage pipe leakage analysis unit 230 of the operation server 20 analyzes the leak on the conduit (Exfiltration) based on the measurement data transmitted from the collection unit 10.

In addition, the pollution load unit analysis unit 240 analyzes the sewage generation amount and the pollution unit based on the data transmitted from the collection unit 10 and the input means 200.

In addition, the sewer pipe failure degree analysis unit 250 and the amount of water flow analysis (CSO: Combinded Sewer Overflows) analyzed by the water quantity analysis unit 220, the sewage pipe leakage analysis unit 230 and the pollution load unit analysis unit 240 and Insolvency quantity and inflow quantity (I / I: Infiltration / Inflow), leakage of conduit (Exfiltration), and information on the degree of deterioration of conduits are judged, and the timing of renovation and priority is determined.

In addition, the operation server 20 is configured to perform a conditional search. For this purpose, the operation server 20 further includes a database 280 in which received measurement data and self-analyzed result data are stored. In addition, based on the result data stored in the database 280, analysis of the data trends for each period (flow rate, flow rate, water level, rainfall) for each period, and the correlation between items (flow rate, flow rate, water level) for each point, water quality data Processes hourly, point-by-point searches and rainfall event analysis.

In addition, the operation server 20 further includes an abnormal state detecting unit 270, wherein the abnormal state detecting unit 270 has an abnormality and power consumption for various types of measuring devices constituting the collecting unit 10. In connection with the sensing means provided for detecting in real time, when the abnormal state is detected, the corresponding measuring device and its failure state are provided to the manager terminal 30 and the manager.

This abnormal state detection information is to be delivered to the administrator through any one of the SMS, E-mail and Fax information transmission medium.

In addition, the operation server 20 is an information providing unit 250 for transmitting the request information to the manager terminal 30 by extracting the information requested from the manager terminal 30 described below from the database 280, etc. More).

On the other hand, the manager terminal 30 is configured to provide a manager with various information necessary for monitoring the sewage pipe, in real time the result information analyzed and processed by the operation server 20 in conjunction with the operation server 20 Will be monitored.

In addition, the manager terminal 30 includes the information requesting unit 300 and requests the operation server 20 for specific state information, cumulative information, past history information, and conditional search information for sewage pipes. .

In particular, the manager terminal 30 includes a GIS-based sewerage pipe providing unit 310, and according to the connection status of the sewage pipe provided on the management target area in the operation server 20 and the direction of sewage By grasping the concentration status of the conduit step by step and providing it to the manager terminal 30 it is possible to monitor through the sewage conduit map of the area.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

10: collecting unit 20: operation server
30: manager terminal 100: gas sensor
110: measuring sensor 120: rainfall sensor
140: information collector 150: communication module
200: input means 210: sewage pipe evaluation unit
220: quantity analysis unit 230: sewage pipe leakage analysis unit
240: pollution load unit analysis unit 250: sewage pipe failure degree analysis unit
260: information providing unit 270: abnormal state detection unit
280: database 300: information request unit
310: sewage pipe map provider

Claims (15)

delete In the sewage monitoring system for collecting and monitoring the status information of a plurality of sewage pipes installed in a specific target area,
A collection unit installed in the sewage pipe for collecting a plurality of measurement data;
And input means for inputting regional information including the population and area of the management target area and history information about a plurality of sewage pipes installed in the corresponding area, and transmitting measurement data collected through the wired / wireless communication network from the collection unit in real time. An operation server for receiving, analyzing, storing, and outputting state information of the sewer pipe; And
It includes a manager terminal for requesting the status information of the sewage pipe in connection with the operation server and receiving and monitoring the state information data stored in the operation server,
The collecting unit includes a gas sensor for measuring the hydrogen sulfide gas concentration generated from the sewage conduit is installed on the manhole concentrating one or more sewage conduits,
The operation server analyzes the data measured from the gas sensor to diagnose and evaluate the sewage pipe sewer, sewage pipe monitoring system, characterized in that to determine the age of the sewage pipe based on this. The method of claim 2,
The operation server sewage pipe monitoring system, characterized in that to analyze the data measured from the gas sensor to estimate the amount of dredging sewage pipe sewer dredging time. The method of claim 2,
The collecting unit includes a mounting means configured to move the gas sensor in fluid according to the level of the manhole,
The mounting means is sewage pipe monitoring system characterized in that it comprises one or more guide rails coupled along the side wall of the manhole and buoyancy port is coupled to the lower portion of the gas sensor and installed to flow along the guide rail. The method of claim 4, wherein
The mounting means is installed so as to flow in the lower portion of the guide rail sewer pipe monitoring system further comprises a stopper for limiting the downward flow of the gas sensor. The method of claim 4, wherein
The mounting means further comprises a flow ring installed on the guide rail, the sewer pipe monitoring system further comprises a lead wire fixed to the upper manhole through the flow ring from the gas sensor and a weight attached to the lead wire . delete delete delete delete delete delete delete delete delete

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