Pipeline simulation device for water quality monitoring

Abstract

The utility model relates to a pipeline simulation device for water quality monitoring, which comprises a concentric-square-shaped PVC (polyvinyl chloride) water delivery pipe, a driving pump for driving water flow to circulate in the PVC water delivery pipe, a water inlet pipe arranged at the front end of the driving pump, and a transparent pipe arranged at the joint of the driving pump and the PVC water delivery pipe and used for observing water quality, and the water quality is observed in real time by utilizing the transparent pipe arranged at the joint of the driving pump and the PVC water conveying pipe, so that the effects of simulating the real water supply pipeline state with the biological membrane and monitoring the Mn (II) oxidation dynamic state in real time are realized.

Description

Technical Field

[0001] The utility model relates to the field of water supply monitoring, in particular to the technical field of a pipeline simulation device for water quality monitoring. Background Art

[0002] In the field of modern urban water supply safety management, it is crucial to ensure that water quality is not polluted, especially that the content of trace elements such as divalent manganese (Mn(II)) is controlled within a safe range.

[0003] During the water supply pipeline transportation process, Mn(II) is oxidized by microorganisms to form insoluble tetravalent manganese ions (Mn(IV)). Subsequently, oxides (MnOx) formed in various oxidation states are formed. When this process is small, microorganisms can oxidize and precipitate Mn(II), which can then be filtered out and improved water quality. However, if the conversion amount increases, it will cause brown or black turbidity, affecting the clarity and color of the water, and even causing pipeline blockage in severe cases.

[0004] However, there is currently a lack of dynamic simulation devices specifically for the microbial oxidation process of Mn(II) on the market. Most existing simulation systems focus on monitoring general water quality parameters and have limited ability to monitor the dynamic changes of the specific indicator Mn(II).

[0005] Therefore, it is particularly urgent to develop an innovative device that can accurately simulate the physical conditions such as water flow, pressure, and pH value in water supply pipes and effectively reproduce the effects of biofilm ecosystems on Mn(II) oxidation. Utility Model Content

[0006] In view of the above technical limitations, the utility model aims to design a simulation device that simulates the biofilm system and the real water supply pipeline state to monitor the Mn(II) oxidation dynamics in real time.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A pipeline simulation device for water quality monitoring includes a zigzag PVC water pipe, a driving pump for driving water to circulate in the PVC water pipe, a water inlet pipe arranged at the front end of the driving pump, and a transparent tube for observing water quality at the connection between the driving pump and the PVC water pipe.

[0009] Compared with the prior art, this case uses a circular PVC water pipe with a water pump to circulate water in the pipe to simulate the dynamic state of the water supply pipe. At the same time, a transparent tube installed at the connection between the driving pump and the PVC water pipe is used to observe the water quality in real time, thereby simulating the state of a real water supply pipe with a biofilm and monitoring the oxidation dynamics of Mn(II) in real time.

[0010] In some embodiments, the transparent tube is a small-diameter pipe with a diameter smaller than that of the PVC water pipe, so that turbulence is generated during the circulation of flowing water, promoting sufficient mixing of water in the limited pipe.

[0011] Preferably, the transparent tubes are respectively provided at both water inlet and outlet ends of the driving pump.

[0012] Preferably, the diameter ratio of the transparent tube to the PVC water pipe is 1:3 to 1:5.

[0013] In some embodiments, a PVC sample piece is also provided on the wall of the PVC water pipe to observe the attachment status of microorganisms and precipitation.

[0014] Preferably, the PVC test pieces are distributed on the top, middle and bottom of the wall of the PVC water pipe.

[0015] Preferably, the PVC sample pieces are respectively distributed on the inner side and the outer side of the meandering pipe in the middle of the wall of the PVC water pipe.

[0016] Preferably, the PVC sample piece is arranged at the far end of the PVC water pipe relative to the driving pump.

[0017] In some embodiments, a sampling valve is also included in the PVC water pipe to facilitate sampling testing.

[0018] In some embodiments, a replaceable test tube is also included, which is arranged at the distal end of the driving pump of the PVC water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a pipeline simulation device for water quality monitoring in this case;

[0020] Figure 2 This is a schematic diagram of a second embodiment of a pipeline simulation device for water quality monitoring in this case. DETAILED DESCRIPTION

[0021] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0022] Embodiment 1.

[0023] Please refer to Figure 1, the present invention aims to simulate the physical states such as water flow, pressure, pH value and the biofilm ecosystem in the water supply pipeline. To this end, the pipeline simulation device for water quality monitoring in this case is provided with a PVC water pipe 100 in a circular shape. The PVC water pipe 100 is a polyvinyl chloride (PVC) pipe ring, and preferably a DN110PVC pipe section is used to form a circular pipeline circulation device. In a test scheme of this embodiment, the size can be 0.6m*0.3m, and in some embodiments, the size can also be 1.1m*0.4m. At one end of the pipeline, a driving pump 200 that can drive the water flow to circulate in the PVC water pipe 100 is connected through an elbow joint. In a test scheme of this embodiment, it provides a water flow velocity of about 0.2m / s. The driving pump 200 is preferably a magnetic pump to ensure the purity of the medium.

[0024] A water inlet pipe 300 of a vertical pipe section is arranged at the front end of the driving pump 200. Here, the vertical pipe section is perpendicular to the layout surface of the PVC water pipe 100 when the circular PVC water pipe 100 is laid flat, so as to ensure that the water supply can meet the actual hydraulic distribution requirements. At the same time, its vertical design can make the water flow mix at the water inlet pipe 300 when passing through.

[0025] A transparent tube 400 for observing water quality is provided at the connection between the driving pump 200 and the PVC water pipe 100. The water quality can be observed by using the transparent tube 400, forming a simulated dynamic water supply pipeline state.

[0026] In this way, in the present case, the water quality can be observed in real time by using the transparent tube 400 provided at the connection between the driving pump 200 and the PVC water pipe 100 while simulating the dynamic state of the water supply pipeline, thereby simulating the real state of the water supply pipeline with a biofilm and monitoring the oxidation dynamics of Mn(II) in real time.

[0027] The pipeline simulation device for water quality monitoring in this case is provided with a sampling valve 110 on the PVC water pipe 100. Here, the sampling valve 110 can be used for sampling and testing, and can also be used for drainage after the test is completed.

[0028] In order to fully mix the water in a limited pipeline, the transparent tube 400 is preferably a small-diameter pipe with a smaller diameter than the PVC water pipe 100. In this way, turbulence will be generated during the water circulation process, so that the water in the pipeline loop can be fully mixed in a negligible time. Such a small-diameter pipe can be respectively set at the inlet and outlet ends of the driving pump. Preferably, the diameter ratio of the transparent tube 400 and the PVC water pipe 100 is 1:3 to 1:5, and preferably 1:4 in this embodiment.

[0029] In order to observe the microorganisms and sediment attachment state in the PVC water pipe 100, the pipeline simulation device for water quality monitoring can also set a PVC sample piece 120 on the PVC water pipe 100. The specific installation method can be to punch holes on the PVC water pipe 100, install the circular PVC sample piece 120, and then tie it.

[0030] In order to make the biofilm sample more objectively represent the state of microorganisms in the pipeline, the PVC sample pieces 120 can be set in multiple places. Preferably, they are distributed on the top, middle and bottom of the wall of the PVC water pipe 100. Furthermore, the PVC sample pieces 120 are respectively distributed on the inner and outer sides of the meandering pipe in the middle of the wall of the PVC water pipe 100. For another example, multiple PVC sample pieces 120 can also be respectively set at the relatively far ends of the driving pump 200 of the PVC water pipe 100. In this way, by combining biofilm samples from multiple places into one, the sample can better represent the microorganisms in a specific pipeline loop.

[0031] The following example illustrates the application scenario of the pipeline simulation device for water quality monitoring in this case. Through the design of the pipeline device as described above, water circulates in the pipeline, which can ensure the simulation of the real hydraulic retention time in the pipeline, and at the same time, the water velocity related to the actual water distribution system conditions can be maintained. It should be explained here that the following application case is an example to illustrate the effective application of the device in this case, and the application of the device in this case is not limited to this.

[0032] Specifically, in Application Scheme 1, the water quality monitoring pipeline simulation device of this case injects chlorine disinfectant of different concentrations and determines the reaction rate of Mn(II), the accumulation of MnOx on the pipe wall, sediment characteristics, etc. by observing the water flow and appearance of the transparent tube 400 and the deposition appearance of the PVC sample piece 120.

[0033] Application Scheme 2: In this case, the water quality monitoring pipeline simulation device is used to compare different disinfectants, such as chloramine disinfectant and chlorine disinfectant.

[0034] Application Scheme 3: In this case, the water quality monitoring pipeline simulation device is injected with humic acid and combined with the above-mentioned disinfectant comparison scheme for comprehensive comparison.

[0035] Application Scheme 4: In this case, the water quality monitoring pipeline simulation device is injected with Fe(III) and combined with the above scheme to compare the effect of Fe(III) on the oxidation accumulation of Mn(II).

[0036] In the above scheme, the concentration of manganese can be detected by ICP-MS (inductively coupled plasma mass spectrometry), the concentration of organic matter can be detected by TOC instrument (Total Organic Carbon Analyzer), and the concentration of chlorine and chloramine can be detected by Hach portable instrument (Hach Pocket Colorimeter II).

[0037] Embodiment 2 In the description of embodiment 2, the same parts as those of embodiment 1 will not be described again.

[0038] Please refer to Figure 2 At the far end of the driving pump 200 of the PVC water pipe 100, that is, on the pipe on the opposite side of the driving pump 200 of the meander pipe, a replaceable test pipe 500 is provided. This is also the main innovation of this case, because Mn (II) will oxidize and precipitate in a microbial environment, and the test pipe 500 is provided in this section, so that the ecological simulation of pipes of different materials can be realized in a limited space, that is, the setting of the test pipe 500 is for replacement test with pipes of different materials. Here, the test pipe 500 can be a corroded iron pipe or a PVC pipe, both of which can be replaced to simulate the real water supply status in the pipe.

[0039] As mentioned above, this case protects a pipeline simulation device for water quality monitoring. All technical solutions that are the same or similar to this case should be deemed to fall within the scope of protection of this case.

Claims

1. A pipeline simulation device for water quality monitoring, characterized in that: The invention comprises a meandering PVC water pipe (100), a driving pump (200) for driving water to circulate in the PVC water pipe (100), a water inlet pipe (300) arranged at the front end of the driving pump (200), and a transparent tube (400) for observing water quality is provided at the connection between the driving pump (200) and the PVC water pipe (100).

2. A pipeline simulation device for water quality monitoring as claimed in claim 1, characterized in that: The transparent tube (400) is a small-diameter pipe with a smaller diameter than the PVC water pipe (100).

3. A pipeline simulation device for water quality monitoring as claimed in claim 2, characterized in that: The transparent tubes (400) are respectively provided at the water inlet and outlet ends of the driving pump (200).

4. A pipeline simulation device for water quality monitoring as claimed in claim 2, characterized in that: The diameter ratio of the transparent tube (400) and the PVC water pipe (100) is 1:3 to 1:

5.

5. A pipeline simulation device for water quality monitoring as claimed in claim 1, characterized in that: Also included is a PVC sample piece (120) arranged on the wall of the PVC water pipe (100).

6. A pipeline simulation device for water quality monitoring as claimed in claim 5, characterized in that: The PVC sample pieces (120) are distributed on the top, middle and bottom of the wall of the PVC water pipe (100).

7. A pipeline simulation device for water quality monitoring as claimed in claim 6, characterized in that: The PVC sample pieces (120) are respectively distributed on the inner side and the outer side of the meandering pipe in the middle of the pipe wall of the PVC water pipe (100).

8. A pipeline simulation device for water quality monitoring as claimed in claim 5, characterized in that: The PVC sample piece (120) is arranged at the far end of the PVC water pipe (100) relative to the driving pump (200).

9. A pipeline simulation device for water quality monitoring as claimed in claim 1, characterized in that: It also includes a sampling valve (110) arranged on the PVC water pipe (100).

10. A pipeline simulation device for water quality monitoring as claimed in claim 1, characterized in that: The invention also includes a replaceable test tube (500) provided at the far end of the driving pump (200) of the PVC water pipe (100).

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