Online sewage monitoring device

Abstract

The present application relates to sewage monitoring device, disclose a kind of sewage online monitoring device, including sewage drainage part (1) and sewage detection part (2), one end of the sewage drainage part (1) is provided with sampling port (11), to be connected with sewage pipeline by the sampling port (11), the other end of the sewage drainage part (1) is connected with the sewage detection part (2), the sewage detection part (2) includes the detection part shell (21) formed with monitoring cavity and monitor (22), the monitor (22) is arranged in the monitoring cavity, the bottom of the monitoring cavity is equipped with sewage discharge structure (211), to be able to discharge the sediment of the bottom of the monitoring cavity, the slow flow bubble removal unit (12) is equipped in the sewage drainage part (1). The sewage online monitoring device of the present application can realize real-time monitoring of target index in sewage, and can improve the detection accuracy of monitor.

Description

Technical Field

[0001] This invention relates to wastewater monitoring devices, specifically to an online wastewater monitoring device. Background Technology

[0002] As people become more aware of environmental protection, businesses are putting more and more effort into treating waste gas and wastewater.

[0003] With the continuous development of online analytical instrument technology and the increasing demands of process technology, online pH analyzers are being used more and more widely in wastewater treatment plants in petrochemical and coal chemical enterprises.

[0004] Currently, commonly used online pH analyzer sampling and measurement devices employ the following installation methods: direct pipe insertion, probe sampling, and probe submersion. Direct pipe insertion is primarily used for pH measurements in environments with poor water quality. However, this method is disadvantageous because the probe and surrounding accessories are difficult to clean, making maintenance challenging for operators. Probe sampling requires a high degree of water cleanliness and is unsuitable for measurements in environments with poor water quality, as it can easily clog the sampling pipeline. Probe submersion is mainly used for measuring water quality inside containers, requiring a stable liquid level within the container without significant fluctuations. When sampling and analyzing pH in wastewater with high hardness and a tendency to scale, the direct insertion of the probe into the pipeline is often problematic. Due to the high water hardness and numerous solid impurities, the flowing medium initially erodes the probe, causing wear and tear, resulting in a short lifespan and frequent damage. Later, scaling on the pH probe, its mounting accessories, and surrounding pipe walls prevents proper contact with the measured medium, leading to poor or no response and rendering the instrument unusable. Probe sampling methods also suffer from severe scaling on the sampling pipeline, causing blockages and preventing sample flow, thus hindering sample extraction. Online pH analyzers used for sampling and analyzing high-hardness, scale-prone wastewater not only require significant maintenance but also compromise the accuracy and stability of the analyzer (monitoring device), making it difficult to control parameters and adjust acid and alkali levels, leading to material waste and increased production costs.

[0005] Therefore, there is a need to provide an online wastewater monitoring device. Summary of the Invention

[0006] The present invention provides an online wastewater monitoring device that can realize real-time monitoring of target indices in wastewater and improve the detection accuracy of the monitor.

[0007] To achieve the above-mentioned objectives, the present invention provides an online wastewater monitoring device, comprising a wastewater diversion section and a wastewater detection section. One end of the wastewater diversion section is provided with a sampling port for connection to a wastewater pipeline. The other end of the wastewater diversion section is connected to the wastewater detection section. The wastewater detection section includes a detection section housing with a monitoring cavity and a monitor. The monitor is disposed inside the monitoring cavity. The bottom of the monitoring cavity is provided with a drainage structure to discharge sediments at the bottom of the monitoring cavity. The wastewater diversion section is provided with a slow-flow defoaming unit.

[0008] Specifically, the sampling port is located at the outlet end of the sewage pipe. The sampling port end face is inclined to intersect the flow direction of the sewage in the sewage pipe, and the upper part of the sampling port end face is connected to the pipe wall of the sewage pipe. The lower part of the sampling port end face extends into the cavity of the sewage pipe, and the extension distance is less than half the diameter of the sewage pipe. The sewage detection unit is also provided with an outlet for discharging sewage, and the outlet is provided with an overflow structure.

[0009] Preferably, the slow-flow defoaming unit includes at least two slow-flow defoaming devices.

[0010] More preferably, the slow-flow defoaming device is a slow-flow louver plate, which includes multiple slow-flow sub-plates disposed on a support plate, and the multiple slow-flow sub-plates are arranged equidistantly from bottom to top along the flow direction of sewage in the sewage diversion section.

[0011] Specifically, the slow-flow defoaming device is a slow-flow mesh plate.

[0012] Preferably, the bottom of the monitoring cavity is configured as an arc-shaped structure protruding outward from the monitoring cavity, and the sewage discharge structure is located in the middle of the arc-shaped structure.

[0013] More preferably, the sewage discharge structure includes at least one sewage outlet, and the outflow of sewage from the sewage discharge structure is less than the inflow of sewage from the sampling port.

[0014] More preferably, the wastewater detection unit further includes a monitor protective sleeve and a monitoring chamber cover. The monitoring chamber cover is located at the top of the monitoring chamber, and the protective sleeve is located inside the monitoring chamber. One end of the monitor protective sleeve is connected to the monitoring chamber cover, and the other end extends to the bottom of the monitoring chamber and is provided with a monitoring port. The monitoring chamber cover is provided with a monitor mounting port to facilitate the installation of the monitor. The monitor is inserted into the monitor protective sleeve through the monitor mounting port, and the monitoring end of the monitor extends out of the monitoring port.

[0015] Furthermore, the sewage diversion section has a groove structure, and the groove structure is equipped with a splash guard at the sampling port.

[0016] Preferably, the groove structure is a semi-circular groove structure.

[0017] The wastewater online monitoring device provided by this invention utilizes a slow-flow defoaming unit positioned between the device and the sampling port to slow down and defoam the wastewater flow. This reduces the wastewater flow velocity, minimizing the scouring and frictional effects of solid impurities on the monitor, thus preventing damage from water flow and extending its lifespan. Reducing air bubbles in the wastewater further reduces scouring and friction, extending the monitor's lifespan, and ensures sufficient contact between the monitor and the wastewater, improving monitoring stability and data accuracy. Furthermore, the slow-flow defoaming unit reduces the wastewater flow velocity within the wastewater diversion structure. The slow flow and relatively stable sewage surface, coupled with the low flow velocity, allow solid impurities in the sewage to settle and form sediment. Since sedimentation is more likely to occur after the sewage passes through the slow-flow defoaming unit, the sediment mostly forms in the monitoring chamber of the sewage detection unit. The bottom of the monitoring chamber is equipped with a drain structure, so the sediment settled at the bottom of the monitoring chamber will be discharged from the sewage online monitoring device by gravity along with the water flow. This enables automatic cleaning of the sediment in the monitoring chamber, ensuring both the overall smooth operation of the sewage online monitoring device and preventing impurities from adhering to the monitor. This improves the accuracy and stability of the monitor's detection data, eliminating the need for frequent cleaning of the monitor.

[0018] Other features and advantages of the present invention will be described in detail in the following specific examples section. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the working state of an example of the online wastewater monitoring device of the present invention;

[0020] Figure 2 This is a top view of part of the structure of the wastewater online monitoring device of the present invention;

[0021] Figure 3 yes Figure 2 A schematic diagram showing the removal of the monitor mounting port;

[0022] Figure 4 This is a bottom view of the wastewater online monitoring device of the present invention;

[0023] Figure 5 yes Figure 2 A cross-sectional view along the AA direction;

[0024] Figure 6 yes Figure 2 Cross-sectional view along the BB direction;

[0025] Figure 7 This is a schematic diagram of the structure of the slow-flow louvered plate in the wastewater online monitoring device of the present invention;

[0026] Figure 8 This is a schematic diagram of the slow-flow mesh plate in the wastewater online monitoring device of the present invention.

[0027] Explanation of reference numerals in the attached figures

[0028] 1-Wastewater diversion section 11-Sampling port

[0029] 12-Slow-flow defoaming unit 121-Slow-flow defoaming device

[0030] 1211-Slow Flow Louver Plate 12111-Support Plate

[0031] 12112-Slow Flow Subplate 1212-Slow Flow Mesh Plate

[0032] 13-Splash guard 2-Wastewater testing section

[0033] 21-Detection section housing 211-Drainage structure

[0034] 22-Monitor 23-Monitor Protective Sleeve

[0035] 231-Monitoring port; 24-Monitor installation port

[0036] 3- Overflow Structure Detailed Implementation

[0037] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0038] First, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] like Figures 1 to 4As shown, in one embodiment of the wastewater online monitoring device provided by the present invention, the wastewater online monitoring device includes a wastewater diversion section 1 and a wastewater detection section 2. One end of the wastewater diversion section 1 is provided with a sampling port 11 to be connected to a wastewater pipeline through the sampling port 11. The other end of the wastewater diversion section 1 is connected to the wastewater detection section 2. The wastewater detection section 2 includes a detection section housing 21 with a monitoring cavity and a monitor 22. The monitor 22 is disposed in the monitoring cavity. The bottom of the monitoring cavity is provided with a sewage discharge structure 211 to discharge the sediment at the bottom of the monitoring cavity. The wastewater diversion section 1 is provided with a slow-flow defoaming unit 12. The defoaming unit 12 is preferably disposed between the sampling port 11 and the wastewater detection section 2.

[0040] The above technical solution utilizes a slow-flow defoaming unit 12 installed between the wastewater detection section 2 and the sampling port 11 to slow down and defoam the wastewater. On one hand, this reduces the wastewater flow velocity, decreasing the scouring and frictional effect of solid impurities on the monitor 22, thus preventing damage from water flow and extending its service life. Reducing air bubbles in the wastewater also minimizes their scouring and frictional effect on the monitor 22, further extending its service life. Furthermore, it ensures sufficient contact between the monitor 22 and the wastewater, improving the stability and accuracy of the monitoring data. On the other hand, the slow-flow defoaming unit 12 reduces the flow velocity of the wastewater in the wastewater diversion section 2. The slow flow and relatively stable sewage surface, coupled with the low flow velocity, allow solid impurities in the sewage to settle and form sediment. Since sedimentation is more likely to occur after the sewage passes through the slow-flow defoaming unit 12, most of the sediment forms in the monitoring chamber of the sewage detection unit 2. The bottom of the monitoring chamber is equipped with a drain structure 211. Therefore, the sediment settled at the bottom of the monitoring chamber will be discharged from the sewage online monitoring device by gravity along with the water flow through the drain structure 211. This enables automatic cleaning of the sediment in the monitoring chamber, ensuring both the overall smooth operation of the sewage online monitoring device and preventing impurities from easily adhering to the monitor 22. This improves the accuracy and stability of the monitoring data, eliminating the need for frequent cleaning of the monitor 22.

[0041] like Figures 1 to 4As shown, in one embodiment of the wastewater online monitoring device provided by the present invention, the sampling port 11 is placed at the outlet end of the wastewater pipe, and the sampling port 11 can be configured such that its sampling port end face intersects obliquely with the flow direction of the wastewater in the wastewater pipe. Specifically, the upper part of the sampling port end face is connected to the pipe wall of the wastewater pipe, and the lower part of the sampling port end face extends into the cavity of the wastewater pipe. The extension distance should be less than half the diameter of the wastewater pipe, and the extension distance can be modified to be less than one-third of the diameter of the wastewater pipe. In this way, a portion of the wastewater flowing out of the outlet end of the wastewater pipe can be intercepted and enter the wastewater online monitoring device for online monitoring of the wastewater. This structure enables the wastewater online monitoring device to obtain the wastewater to be tested from the wastewater pipe without the aid of external force, thereby achieving both... The overall structure of the online wastewater monitoring device is simplified, which saves energy. The structure of the sampling port 11 allows it to be directly connected to the wastewater pipe without being inserted into it. This makes it easier to clear the sampling port 11 if blockage occurs. In addition, the wastewater detection unit 2 is provided with an outlet for discharging wastewater, and an overflow structure 3 is provided at the outlet to guide the wastewater to the required location. The overflow structure 3 is designed to prevent wastewater from flowing along the outer wall of the detection unit housing 21, thus preventing the adhesion of impurities on the outer wall of the detection unit housing 21, especially at the bottom of the outer wall (i.e., at the discharge structure 211). This makes it less likely for the outlet end of the discharge structure 211 to become blocked.

[0042] like Figure 1 As shown, in one embodiment of the wastewater online monitoring device provided by the present invention, the slow-flow defoaming unit 12 includes at least two slow-flow defoaming devices 121 to perform multiple slow-flow defoaming on the wastewater, thereby improving the effect of slow-flow defoaming. Taking the provision of two slow-flow defoaming devices 121 in the slow-flow defoaming unit 12 as an example, both slow-flow defoaming devices 121 can be as follows: Figure 7 The slow-flow louver 1211 shown is or is like Figure 8 The slow-flow screen plate 1212 shown can also be a combination of a slow-flow louver plate 1211 and a slow-flow screen plate 1212. When the two slow-flow defoaming devices 121 in the slow-flow defoaming unit 12 are a combination of a slow-flow louver plate 1211 and a slow-flow screen plate 1212, it is preferable to place the slow-flow louver plate 1211 near the sampling port 11 and the slow-flow screen plate 1212 away from the sampling port 11. This allows larger impurities to be filtered first through the slow-flow louver plate 1211, and then smaller impurities to be filtered through the slow-flow screen plate 1212, thus forming multi-stage filtration and improving the filtration effect. Specifically, as shown... Figure 7As shown, the flow-slowing louver 1211 includes multiple flow-slowing sub-plates 12112 disposed on the support plate 12111. The multiple flow-slowing sub-plates 12112 are equidistantly arranged from bottom to top along the flow direction of the sewage in the sewage diversion section 1. This design can effectively slow down the flow. Figure 8 As shown, the flow-retardant mesh plate 1212 is configured with a porous structure to block air bubbles and impurities in the sewage, and to further slow down the flow of the sewage. Specifically, as... Figure 1 and Figure 2 As shown, the sewage diversion section 1 can be designed without a top plate, and slots that can match the slow-flow louver 1211 or the slow-flow mesh 1212 can be designed in the sewage diversion section 1 so that the slow-flow louver 1211 and the slow-flow mesh 1212 can be inserted into the sewage diversion section 1 by cooperating with the slots. This design facilitates the installation and disassembly of the slow-flow defoaming device 121, and also facilitates the cleaning of the slow-flow defoaming device 121 and the impurities that have settled or adhered in the sewage diversion section 1.

[0043] like Figure 3 As shown in Figure 4, in one embodiment of the wastewater online monitoring device provided by the present invention, the bottom of the monitoring cavity is configured as an arc-shaped structure protruding outward from the monitoring cavity, such as a spherical structure or a conical structure, and preferably the arc-shaped structure is configured to gradually protrude outward from the edge area to the middle area, and the sewage discharge structure 211 is located in the middle of the arc-shaped structure. The bottom of the monitoring chamber is designed as an arc-shaped structure protruding outwards, which forms an impurity-accommodating area suitable for accommodating impurities in the wastewater below the monitoring chamber. The arc-shaped structure allows settled impurities to accumulate in the concave area of ​​the arc-shaped structure and eventually accumulate at the discharge structure 211, facilitating their discharge. The discharge structure 211 can include at least one discharge port to facilitate the discharge of impurities from various parts of the bottom of the monitoring chamber. It also ensures that the outflow of wastewater at the discharge structure 211 is less than the inflow of wastewater at the sampling port 11, allowing the monitoring chamber to hold wastewater for detection. Furthermore, the arc-shaped structure design reduces turbulence when the wastewater changes direction at the bottom of the monitoring chamber, facilitating impurity deposition and preventing wear on the monitoring parts of the monitor 22.

[0044] like Figure 6As shown, in one embodiment of the wastewater online monitoring device provided by the present invention, the wastewater detection unit 2 further includes a monitor protective sleeve 23. The top of the monitoring chamber is provided with a monitoring chamber cover plate. The protective sleeve 23 is disposed inside the monitoring chamber. One end of the monitor protective sleeve 23 is connected to the monitoring chamber cover plate, and the other end extends to the bottom of the monitoring chamber and is provided with a monitoring port 231. The monitoring chamber cover plate is provided with a monitor installation port 24 to facilitate the installation of a monitor 22. The monitor 22 is inserted into the monitor protective sleeve 23 through the monitor installation port 24, and the monitoring end of the monitor 22 extends out of the monitoring port 231. The monitor protective sleeve 23 protects the monitor 22 from sewage erosion, thus extending its service life. The sleeve is designed with one end connected to the monitoring chamber cover and the other end extending to the bottom of the monitoring chamber, with only a monitoring port 231 provided for easy access to the detection end of the monitor 22. This allows the protective sleeve 23 to cover and protect the monitor 22 as much as possible. It is important to note that the monitor mounting port 24 should preferably be aligned with the protective sleeve 23.

[0045] like Figure 5 and Figure 6 As shown, in one embodiment of the wastewater online monitoring device provided by the present invention, the wastewater diversion section 1 is configured as a groove structure, and the groove structure is provided with a splash guard 13 at the sampling port 11. By configuring the wastewater diversion section 1 as a groove structure, that is, the upper part of the wastewater diversion section 1 is an open structure, it facilitates the installation and disassembly of the slow-flow defoaming device 121 and the cleaning of the wastewater diversion section 1. The splash guard 13 at the sampling port 11 prevents the wastewater flowing into the wastewater diversion section 1 from splashing out due to the change in flow direction caused by the sampling port 11, ensuring the flow rate of wastewater in the wastewater diversion section 1, and also reducing the bubbles formed by the large amount of gas entrained in the wastewater during flow. The groove structure can preferably be configured as follows: Figure 5 The semi-circular groove structure shown allows deposited impurities to accumulate at the bottom of the semi-circular groove structure, and the semi-circular groove structure has almost no cleaning dead corners, making it easy to clean the semi-circular groove structure.

[0046] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0047] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0048] Furthermore, various different implementations of the present invention can be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed in the present invention.

Claims

1. A wastewater online monitoring device, characterized in that, It includes a sewage diversion section (1) and a sewage detection section (2). One end of the sewage diversion section (1) is provided with a sampling port (11) to be connected to a sewage pipe through the sampling port (11). The other end of the sewage diversion section (1) is connected to the sewage detection section (2). The sewage detection section (2) includes a detection section housing (21) with a monitoring cavity and a monitor (22). The monitor (22) is disposed in the monitoring cavity. The bottom of the monitoring cavity is provided with a sewage discharge structure (211) to discharge the sediment at the bottom of the monitoring cavity. The sewage diversion section (1) is provided with a slow-flow defoaming unit (12). The sewage diversion section (1) has a groove structure; The slow-flow defoaming unit (12) includes at least two slow-flow defoaming devices (121), namely a slow-flow louver (1211) and a slow-flow mesh plate (1212). The slow-flow louver (1211) is located near the sampling port (11), and the slow-flow mesh plate (1212) is located away from the sampling port (11). The bottom of the monitoring chamber is configured as an arc-shaped structure protruding outward from the monitoring chamber, and the sewage discharge structure (211) is located in the middle of the arc-shaped structure; the sewage discharge structure (211) includes at least one sewage discharge port, and the outflow of sewage at the sewage discharge structure (211) is less than the inflow of sewage at the sampling port (11); The sampling port (11) is located at the outlet end of the sewage pipe. The sampling port end face of the sampling port (11) intersects the flow direction of the sewage in the sewage pipe at an incline. The upper part of the sampling port end face is connected to the pipe wall of the sewage pipe. The lower part of the sampling port end face extends into the cavity of the sewage pipe, and the extension distance is less than half the diameter of the sewage pipe. The sewage detection unit (2) is also provided with an outlet for discharging sewage, and an overflow structure (3) is provided at the outlet.

2. The wastewater online monitoring device according to claim 1, characterized in that, The slow-flow louver (1211) includes multiple slow-flow sub-plates (12112) disposed on the support plate (12111), and the multiple slow-flow sub-plates (12112) are equidistantly arranged from bottom to top along the flow direction of sewage in the sewage diversion section (1).

3. The wastewater online monitoring device according to claim 1, characterized in that, The wastewater detection unit (2) also includes a monitor protective sleeve (23) and a monitoring chamber cover. The monitoring chamber cover is located at the top of the monitoring chamber, and the protective sleeve (23) is located inside the monitoring chamber. One end of the monitor protective sleeve (23) is connected to the monitoring chamber cover, and the other end extends to the bottom of the monitoring chamber and is provided with a monitoring port (231). The monitoring chamber cover is provided with a monitor installation port (24) to facilitate the installation of the monitor (22). The monitor (22) is inserted into the monitor protective sleeve (23) through the monitor installation port (24), and the monitoring end of the monitor (22) extends out of the monitoring port (231).

4. The wastewater online monitoring device according to any one of claims 1 to 3, characterized in that, The groove structure is provided with a splash guard (13) at the sampling port (11).

5. The wastewater online monitoring device according to claim 4, characterized in that, The groove structure is a semi-circular groove structure.

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