Pipe network water quality monitoring pretreatment device

Abstract

The utility model provides a pipe network water quality monitoring pretreatment device. The pipe network water quality monitoring pretreatment device comprises a sewer well, a PVC pipe is arranged on the sewer well, a signal sensor and a water quality monitor are arranged on one side of the PVC pipe, the PVC pipe comprises a pipe body, two rows of water through holes are formed in the pipe body, a mesh supporting plate is arranged on the pipe body, a second sensor is arranged on the mesh supporting plate, and a pipe connecting piece is arranged at the bottom of the mesh supporting plate. According to the whole structure, the asymmetric holes are formed in the pipe wall of the PVC pipe, a water body generates rotational flow, sedimentation of internal impurities is accelerated while the water is filtered, and meanwhile automatic bottom desilting is achieved by means of the water flow velocity difference of the bottom desilting opening. The whole device is simple in mechanism, free of any moving part, affordable, easy to install and maintain, and capable of greatly improving the operation stability of pipe network monitoring equipment, reducing the frequency of manually cleaning the sensor, reducing the possibility that the sensor is washed away by water flow, greatly reducing the later maintenance cost of an enterprise and being widely applied.

Description

Technical Field

[0001] This utility model relates to the field of water quality monitoring, and in particular to a pretreatment device for monitoring water quality in a pipeline network. Background Technology

[0002] Rainwater and sewage discharged into rivers and lakes are classified. To achieve sewage classification and traceability, the sewage quality in the pipe network must be tested. Considering the on-site environmental conditions, pipe network water quality monitoring generally uses UV-based sensors to measure COD. For stable UV-based COD measurements, the optical path must be unobstructed.

[0003] However, in reality, the sewage in the pipe network contains a large amount of impurities and silt. At the same time, when there is rain or dense human activity, the water flow in the pipes is very rapid. In addition, the inside of the urban drainage pipe network is a closed environment, and the pipe network contains a large amount of toxic gases. There are significant safety risks for personnel to carry out construction inside the pipe network. Therefore, the installation of online water quality equipment for the pipe network can only be carried out outside the pipe network.

[0004] Currently, pipeline water quality monitoring equipment faces the following challenges during use: 1. High levels of impurities in the pipeline water cause measurements to easily show extreme values, rendering the data meaningless. 2. The pretreatment devices of the pipeline water quality monitoring equipment are easily corroded by sewage and gases, resulting in short service life and high labor and material costs for replacement. 3. Unstable water flow in the pipeline; high flow rates cause significant impact on the fixed devices, leading to loosening or deformation, resulting in measurement failure or loss of the equipment. 4. Silt accumulation at pipeline measurement points can bury sensors, preventing normal measurement. To address these issues, we propose a pipeline water quality monitoring pretreatment device. Utility Model Content

[0005] This utility model provides a pretreatment device for monitoring water quality in a pipeline network, which solves the problems of high impurities in pipeline water, which easily lead to extremely high or low values ​​in measurements, rendering the measurement data meaningless; and the unstable water flow in the pipeline network, where the fixed device is subjected to great impact from the water flow when the water flow is large, which may cause it to loosen or deform, resulting in the equipment being unable to measure or being lost.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a pretreatment device for monitoring water quality in a pipe network, including a sewer well, a PVC pipe on the sewer well, a signal sensor and a water quality monitor on one side of the PVC pipe, the PVC pipe including a pipe body, two rows of water passage holes on the pipe body, a mesh support plate on the pipe body, a second sensor on the mesh support plate, and a pipe connector at the bottom of the mesh support plate.

[0007] In the preferred embodiment, the sewer well is provided with an upper well opening, and the signal sensor and water quality monitor are installed on the upper well opening. The diameter of the upper well opening is smaller than the diameter of the bottom of the sewer well.

[0008] In the preferred embodiment, the signal sensor is provided with a second clamp, a signal connection line is provided on the top of the signal sensor, and an antenna is provided on the signal sensor.

[0009] In the preferred embodiment, the water quality monitor is equipped with a power supply on top, which has a handle and a power supply connection cable. The water quality monitor is connected to the signal sensor via the power supply connection cable. The water quality monitor is equipped with a third clamp, which has a bracket installed on it. The bracket is installed on the upper wellhead.

[0010] In the preferred embodiment, a plug cap is provided at the top of the pipe body, a wire pass-through port is provided at the bottom of the plug cap, and multiple clamps are provided on the pipe body. The clamps are installed on the upper wellhead, and the power supply line of the second sensor passes through the wire pass-through port and is connected to the signal sensor.

[0011] In the preferred embodiment, the diameter of the water passage hole is 16-20mm, the distance between adjacent water passage holes is 80-120mm, the number of water passage holes in the two rows is the same, and the height of the corresponding water passage hole in one row is higher than the height of the corresponding water passage hole in the other row.

[0012] In the preferred embodiment, the mesh support plate is provided with multiple second water passage holes, the bottom of the pipe connector is provided with a sludge discharge port, and the sludge discharge port is provided with multiple third through holes.

[0013] In the preferred embodiment, a drainage pipe is installed on the sewer well, and the sludge discharge outlet is inserted into the well water at the bottom of the sewer well.

[0014] The beneficial effects of this invention are as follows: When there is water flow in the pipeline, most of the water flows out through the water passages of the PVC pipe, reducing the resistance of the PVC pipe in the water and preventing it from falling off. Simultaneously, it allows for rapid water replacement inside the PVC pipe, enabling the COD sensor to collect and analyze fresh water samples in real time, making the water samples more representative. Furthermore, when sewage flows through the PVC pipe, the water passages on the pipe wall effectively prevent large impurities from entering the vicinity of the COD sensor, avoiding the secondary sensor being unable to process foreign objects. Additionally, the water passages on the PVC pipe wall, which are not paired, create a downward swirling flow as water flows through them, accelerating the settling of impurities inside the passages and thus reducing the impact of water turbidity on the COD measurement value.

[0015] The perforated support plate for the PVC pipe. Impurities in the water within the upper part of the PVC pipe settle more quickly due to the swirling current. These settled impurities pass through the perforated support plate and are discharged from the drain outlet at the bottom of the PVC pipe, preventing accumulation around the second sensor and avoiding obstruction of its optical path, thus affecting measurement. Simultaneously, the perforated support plate also supports the sensor, preventing stress on the second sensor cable.

[0016] The PVC pipe has a cable pass-through port and a cap at the top. This facilitates cable routing, and the cap prevents large-diameter foreign objects from entering the PVC pipe. This avoids the situation where foreign objects, unable to escape through the pipe wall holes, settle around the sensor, thus affecting measurements.

[0017] The lower part of the PVC pipe has a large drainage outlet. The PVC pipe is circular; when water flows through it, part of it flows directly through the straight drainage outlet, while the other part flows along the circular pipe wall. The water flow through the drainage outlet is greater than the water flow along the pipe wall. Utilizing this velocity difference, foreign objects near the drainage outlet (209) are automatically carried away. This prevents sediment from accumulating at the drainage outlet (209) and eventually burying the second sensor.

[0018] The overall structure utilizes asymmetrical openings in the PVC pipe wall to create a swirling flow in the water, which filters the water while accelerating the settling of internal impurities. Simultaneously, the flow velocity difference at the bottom discharge port enables automatic bottom sludge removal. The entire device is simple in structure, has no moving parts, is affordable, easy to install and maintain, and can greatly improve the stability of pipeline monitoring equipment, reduce the frequency of manual sensor cleaning, and lower the possibility of sensors being washed away by water flow. This significantly reduces the company's subsequent maintenance costs, making it widely applicable and possessing significant promotional value. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is an axonometric view of the overall structure of this utility model;

[0021] Figure 2 This is an exploded view of the PVC pipe of this utility model;

[0022] Figure 3 This is an axonometric view of a partial structure of this utility model;

[0023] In the diagram: 1. Manhole; 101. PVC pipe; 2. Plug cap; 201. Cable entry point; 202. Clamp; 203. Pipe body; 204. Water passage hole; 205. Second sensor; 206. Mesh support plate; 207. Pipe connector; 208. Sludge discharge port; 209. Signal sensor; 3. Second clamp; 301. Signal connection cable; 302. Antenna; 303. Water quality monitor; 4. Bracket; 401. Handle; 402. Power supply; 403. Third clamp; 404. Manhole pipe; 5. Well water; 6. Power supply connection cable; 7. Detailed Implementation

[0024] Example 1:

[0025] like Figure 1-3A pretreatment device for monitoring water quality in a pipe network includes a sewer well 1, a PVC pipe 2 mounted on the sewer well 1, a signal sensor 3 and a water quality monitor 4 mounted on one side of the PVC pipe 2, the PVC pipe 2 including a pipe body 204, two rows of water passage holes 205 on the pipe body 204, a mesh support plate 207 mounted on the pipe body 204, a second sensor 206 mounted on the mesh support plate 207, and a pipe connector 208 at the bottom of the mesh support plate 207. With this structure, the second sensor 206 is a COD sensor.

[0026] When water flows through the pipe network, most of the water flows out through the water passages 205 of PVC pipe 2, reducing the resistance of PVC pipe 2 in the water and preventing PVC pipe 2 from falling off. At the same time, it can achieve rapid water replacement inside PVC pipe 2, allowing the COD sensor to collect and analyze fresh water samples in real time, making the water samples more representative. Meanwhile, when sewage flows through PVC pipe 2, the water passages 205 on the pipe wall can effectively block large impurities from entering the vicinity of the COD sensor, preventing the second sensor 206 from being trapped by foreign objects. Furthermore, the water passages 205 on the PVC pipe 2 are not paired; when water flows through the inside of the water passages 205, it forms a downward swirling flow, accelerating the settling of impurities inside the water passages 205, thereby reducing the impact of water turbidity on the COD measurement value.

[0027] The PVC pipe 2 has a mesh support plate 207. Impurities in the water within the upper part of the PVC pipe 2 settle more rapidly under the influence of swirling current. These settled impurities pass through the mesh support plate 207 and are discharged from the discharge port 209 at the bottom of the PVC pipe 2, preventing accumulation around the second sensor 206 and thus avoiding obstruction of the sensor's optical path, which could affect measurement. Simultaneously, the mesh support plate 207 provides support for the sensor, preventing stress on the cable of the second sensor 206.

[0028] The PVC pipe 2 has a wire pass-through port 202 and a plug 201 at the top. While facilitating wire routing, the plug 201 can prevent foreign objects with larger diameters from entering the PVC pipe 2, thus avoiding the phenomenon that foreign objects that cannot be discharged through the pipe wall holes will eventually settle around the sensor and affect the measurement.

[0029] The lower part of PVC pipe 2 has a large discharge port 209. PVC pipe 2 is circular. When water flows through PVC pipe 2, part of it flows directly through the straight discharge port 209, while the other part flows along the circular wall of PVC pipe 2. At this time, the water flow through the discharge port 209 is greater than the water flow along the pipe wall. Utilizing the difference in water velocity, foreign objects near the discharge port 209 can be automatically carried away. This prevents sediment from accumulating in the discharge port 209 and eventually burying the second sensor 206.

[0030] The overall structure utilizes asymmetrical openings on the wall of the PVC pipe 2 to create a swirling flow in the water, which filters the water while accelerating the settling of internal impurities. Simultaneously, the flow velocity difference at the bottom discharge port 209 enables automatic bottom sludge removal. The entire device is simple in structure, has no moving parts, is affordable, easy to install and maintain, and can greatly improve the stability of pipeline monitoring equipment operation, reduce the frequency of manual sensor cleaning, and lower the possibility of sensors being washed away by water flow. This significantly reduces the company's subsequent maintenance costs and makes it widely applicable.

[0031] In the preferred embodiment, the sewer well 1 is provided with an upper well opening 101, and the signal sensor 3 and the water quality monitor 4 are installed on the upper well opening 101. The diameter of the upper well opening 101 is smaller than the diameter of the bottom of the sewer well 1.

[0032] In a preferred embodiment, the signal sensor 3 is equipped with a second clamp 301, a signal connection line 302 is located on the top of the signal sensor 3, and an antenna 303 is mounted on the signal sensor 3. With this structure, the signal connection line 302 transmits the signal to the control unit on the signal sensor 3, allowing the signal sensor 3 to acquire the signal. The power supply connection line 7 supplies power to the signal sensor 3. The power supply 403 provides power to both the signal sensor 3 and the water quality monitor 4.

[0033] In the preferred embodiment, the water quality monitor 4 is equipped with a power supply 403 on its top. The power supply 403 has a handle 402 and a power supply connection cable 7. The water quality monitor 4 is connected to the signal sensor 3 via the power supply connection cable 7. The water quality monitor 4 is equipped with a third clamp 404, and the third clamp 404 has a bracket 401 mounted on it. The bracket 401 is installed on the upper wellhead 101. With this structure, the signal sensor 3 and the water quality monitor 4 are mounted at the upper wellhead 101 via the clamp.

[0034] In the preferred embodiment, the top of the pipe body 204 is provided with a cap 201, and the bottom of the cap 201 is provided with a wire passage 202. Multiple clamps 203 are provided on the pipe body 204, and the clamps 203 are installed on the upper wellhead 101. The power supply line of the second sensor 206 passes through the wire passage 202 and connects to the signal sensor 3. With this structure, the upper part of the PVC pipe 2 has a wire passage 202 and a cap 201. While facilitating wiring, the cap 201 can prevent large-diameter foreign objects from entering the PVC pipe 2, avoiding the phenomenon where foreign objects, unable to exit through the pipe wall holes, eventually settle around the sensor, thus affecting the measurement.

[0035] In the preferred embodiment, the diameter of the water passage 205 is 16-20mm, the spacing between adjacent water passages 205 is 80-120mm, the number of water passages 205 in both rows is the same, and the height of the corresponding water passages 205 in one row is higher than the height of the corresponding water passages 205 in the other row. With this structure, when there is water flow in the pipeline, most of the water will flow out through the water passages 205 of the PVC pipe 2, reducing the resistance of the PVC pipe 2 in the water and preventing the PVC pipe 2 from falling off. At the same time, it allows for rapid water replacement inside the PVC pipe 2, enabling the COD sensor to collect and analyze fresh water samples in real time, making the water samples more representative. Simultaneously, when sewage flows through the PVC pipe 2, the water passages 205 on the pipe wall of the PVC pipe 2 can effectively block large impurities from entering the area around the COD sensor, preventing the second sensor 206 from being encased in foreign objects and unable to process them. Meanwhile, the water passage holes 205 on the PVC pipe 2 are not paired. When the water flows through the water passage holes 205, it will form a downward swirling flow, which will accelerate the settling of impurities inside the water passage holes 205, thereby reducing the impact of water turbidity on COD measurement values.

[0036] In the preferred embodiment, the mesh support plate 207 is provided with multiple second water passage holes, and the bottom of the pipe connector 208 is provided with a sludge discharge port 209, which is provided with multiple third through holes. With this structure, impurities in the water within the upper part of the PVC pipe 2 are accelerated to settle under the action of swirling current. The settled impurities pass through the mesh support plate 207 and are discharged from the sludge discharge port 209 at the bottom of the PVC pipe 2, preventing accumulation around the second sensor 206 and avoiding obstruction of the optical path of the second sensor 206, thus affecting measurement. Simultaneously, the mesh support plate 207 can support the sensor, preventing stress on the cable of the second sensor 206.

[0037] The pipe connector 208 has an internal thread, and the top of the sludge discharge port 209 has an external thread. The pipe connector 208 is connected to the sludge discharge port 209, and the mesh support plate 207 is embedded in the pipe connector 208.

[0038] In the preferred embodiment, a drainage pipe 5 is installed on the sewer well 1, and a sludge discharge port 209 is inserted into the well water 6 at the bottom of the sewer well 1. With this structure, the lower part of the PVC pipe 2 has a large sludge discharge port 209. The PVC pipe 2 is circular; when water flows through the PVC pipe 2, part of it flows directly through the straight sludge discharge port 209, while the other part flows along the circular wall of the PVC pipe 2. At this time, the water flow through the sludge discharge port 209 is greater than the water flow along the pipe wall. Utilizing the difference in water velocity, foreign objects near the sludge discharge port 209 can be automatically carried away. This prevents sediment from accumulating in the sludge discharge port 209 and eventually burying the second sensor 206.

[0039] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A pretreatment device for monitoring water quality in a pipe network, characterized in that: It includes a sewer well (1), a PVC pipe (2) on the sewer well (1), a signal sensor (3) and a water quality monitor (4) on one side of the PVC pipe (2), the PVC pipe (2) includes a pipe body (204), two rows of water passage holes (205) on the pipe body (204), a mesh support plate (207) on the pipe body (204), a second sensor (206) on the mesh support plate (207), and a pipe connector (208) at the bottom of the mesh support plate (207).

2. The pretreatment device for monitoring water quality in a pipe network according to claim 1, characterized in that: The sewer well (1) is provided with an upper well opening (101), and a signal sensor (3) and a water quality monitor (4) are installed on the upper well opening (101). The diameter of the upper well opening (101) is smaller than the diameter of the bottom of the sewer well (1).

3. The pretreatment device for monitoring water quality in a pipe network according to claim 2, characterized in that: The signal sensor (3) is provided with a second clamp (301), the top of the signal sensor (3) is provided with a signal connection line (302), and the signal sensor (3) is provided with an antenna (303).

4. The pretreatment device for monitoring water quality in a pipe network according to claim 2, characterized in that: The water quality monitor (4) is equipped with a power supply (403) on top. The power supply (403) is equipped with a handle (402) and a power supply connection line (7). The water quality monitor (4) is connected to the signal sensor (3) through the power supply connection line (7). The water quality monitor (4) is equipped with a third clamp (404). The third clamp (404) is equipped with a bracket (401). The bracket (401) is installed on the upper wellhead (101).

5. The pretreatment device for monitoring water quality in a pipe network according to claim 1, characterized in that: The top of the pipe body (204) is provided with a plug cap (201), the bottom of the plug cap (201) is provided with a wire hole (202), and the pipe body (204) is provided with multiple clamps (203). The clamps (203) are installed on the upper wellhead (101). The power supply line of the second sensor (206) passes through the wire hole (202) and is connected to the signal sensor (3).

6. The pretreatment device for monitoring water quality in a pipe network according to claim 1, characterized in that: The diameter of the water passage (205) is 16-20mm, the distance between adjacent water passages (205) is 80-120mm, the number of water passages (205) in the two columns is the same, and the height of the corresponding water passage (205) in one column is higher than the height of the corresponding water passage (205) in the other column.

7. The pretreatment device for monitoring water quality in a pipe network according to claim 1, characterized in that: The mesh support plate (207) is provided with multiple second water passage holes, and the bottom of the pipe connector (208) is provided with a sludge discharge port (209), which is provided with multiple third through holes.

8. The pretreatment device for monitoring water quality in a pipe network according to claim 7, characterized in that: A drain pipe (5) is installed on the drain well (1), and the sludge discharge port (209) is inserted into the well water (6) at the bottom of the drain well (1).

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