In-situ pipe type water quality monitoring device based on hydrodynamic pressure

Abstract

The utility model discloses a kind of pipeline type water quality in-situ monitoring devices based on fluid dynamic pressure, comprising: joint, one end is fixed with water pipe, sampling inlet pipe and sampling outlet pipe are arranged in joint;Pressure compensation vessel, another end is fixed with joint, pressure compensation vessel is divided into low-pressure chamber and high-pressure chamber by partition, low-pressure chamber is communicated with water pipe through sampling inlet pipe, high-pressure chamber is communicated with water pipe through sampling outlet pipe;Steady flow pool, it is installed with multiple monitoring sensors, steady flow pool is respectively communicated with one end of multiple pairs of steady flow inlet pipe and steady flow outlet pipe, the other end of multiple steady flow inlet pipes is respectively communicated with low-pressure chamber, the other end of multiple steady flow outlet pipes is respectively communicated with high-pressure chamber;Pressurizing device, it is fixed with pressure compensation vessel, pressurizing device can pressurize water flow input by steady flow outlet pipe and can be output through sampling outlet pipe.The utility model has the beneficial effects of simple structure, low cost, convenient to use, high working efficiency.

Description

Technical Field

[0001] This utility model relates to a pipeline-type in-situ water quality monitoring device. Background Technology

[0002] Most water quality analysis instruments currently on the market employ drainage-type measurement technology, which has several significant drawbacks. Specifically, this method directly discharges the sampled water during the measurement process, resulting in an average daily waste of up to one ton of water resources, thus exacerbating water consumption. Furthermore, insertion probes are susceptible to flow rate fluctuations during use, which may affect the stability of the test results. If the drainage pipeline is designed to be too long, it can also cause data lag, thereby affecting the real-time nature and accuracy of the data. Utility Model Content

[0003] To address the above shortcomings, this invention provides a pipeline-type in-situ water quality monitoring device based on fluid dynamic pressure.

[0004] The technical solution of this utility model is:

[0005] A pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure, comprising:

[0006] The connector has one end fixed to the water pipe, and a sampling inlet pipe and a sampling outlet pipe are installed inside the connector.

[0007] The pressure compensation container is fixed to the other end of the connector. The pressure compensation container is divided into a low-pressure chamber and a high-pressure chamber by a partition. The low-pressure chamber is connected to the water pipe through the sampling inlet pipe, and the high-pressure chamber is connected to the water pipe through the sampling outlet pipe.

[0008] The flow stabilizing tank is equipped with multiple monitoring sensors. The flow stabilizing tank is connected to one end of multiple pairs of flow stabilizing inlet pipes and flow stabilizing outlet pipes. The other end of the multiple flow stabilizing inlet pipes is connected to the low-pressure chamber, and the other end of the multiple flow stabilizing outlet pipes is connected to the high-pressure chamber.

[0009] A pressurizing device, which is fixed to a pressure compensation container, can stabilize the water output from the outlet pipe;

[0010] Part of the water in the water pipe can flow back to the water pipe through the sampling inlet pipe, the low-pressure chamber of the pressure compensation container, the steady flow inlet pipe, the steady flow pool, the steady flow outlet pipe, the high-pressure chamber of the pressure compensation container, and the sampling outlet pipe.

[0011] The pressurization device includes:

[0012] The pressurizing motor has its housing fixed to the pressure compensation container. The motor's shaft extends into the high-pressure chamber and is connected to the pressurizing blades. The other end of multiple steady-flow water pipes is located in the negative pressure zone of the pressurizing blades.

[0013] The pressure compensation container is cylindrical, and the flow stabilization tank is annular, with the flow stabilization tank surrounding the pressure compensation container.

[0014] The pressure compensation container and the connector are integrated into one unit, and the connector and the water pipe are detachably and sealed.

[0015] The flow stabilizing tank is equipped with a suspended rotating scraper ring. The inner side of the rotating scraper ring is equipped with rotating blades, and the outer side of the rotating scraper ring is equipped with a cleaning brush. The rotating blades rotate under the action of the water flow from the flow stabilizing inlet pipe, and the cleaning brush can clean the monitoring sensor.

[0016] When the pressurizing motor accelerates, the monitoring sensor does not collect a signal; when the monitoring sensor collects a signal, the pressurizing motor decelerates.

[0017] The sampling inlet pipe and the sampling outlet pipe are located at two openings inside the water pipe, separated by a certain distance.

[0018] Multiple pairs of constant flow inlet pipes and constant flow outlet pipes are evenly distributed.

[0019] Each pair of constant flow inlet pipes and constant flow outlet pipes is fixed in a staggered manner.

[0020] The constant flow inlet pipe and constant flow outlet pipe are tapered pipes, with the constant flow inlet pipe having a narrow inlet and a wide outlet; the constant flow outlet pipe has a wide inlet and a narrow outlet.

[0021] Compared with the prior art, this utility model has the following advantages:

[0022] 1. On the one hand, it will not cause extra waste of water; for some installation points with troublesome drainage, such as secondary power supply plants located in the basement, there is no need to design additional drainage pipes.

[0023] 2. The detection medium update cycle is less than 10 seconds, which is 80% more efficient than the traditional method.

[0024] 3. The scraping structure reduces the probe contamination rate to less than 2% per month.

[0025] 4. Overall pressure loss <3kPa, suitable for DN50-DN600 pipelines.

[0026] 5. This monitoring device has only one connection port to the water pipe, which greatly facilitates installation and maintenance and significantly shortens water outage time.

[0027] This invention has the advantages of low cost, convenient installation, water and energy saving, and extended instrument life. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 for Figure 1Top view. Detailed Implementation

[0030] The present invention will now be further described with reference to the accompanying drawings:

[0031] like Figure 1 and Figure 2 As shown, a pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure includes:

[0032] Connector 2, one end of which is fixed to water pipe 1, and sampling inlet pipe 21 and sampling outlet pipe 22 are provided inside connector 2;

[0033] The pressure compensation container 3 is fixed to the other end of the connector 2. The pressure compensation container 3 is divided into a low-pressure chamber 301 and a high-pressure chamber 302 by a partition 31. The low-pressure chamber 301 is connected to the water pipe 1 through the sampling inlet pipe 21, and the high-pressure chamber 302 is connected to the water pipe 1 through the sampling outlet pipe 22.

[0034] The flow stabilizing tank 4 is equipped with multiple monitoring sensors 5. The flow stabilizing tank 4 is connected to one end of multiple pairs of flow stabilizing inlet pipes 42 and flow stabilizing outlet pipes 43 respectively. The other end of the multiple flow stabilizing inlet pipes 42 is connected to the low-pressure chamber 301 respectively, and the other end of the multiple flow stabilizing outlet pipes 43 is connected to the high-pressure chamber 302 respectively.

[0035] A pressurizing device is fixed to the pressure compensation container 3. The pressurizing device can pressurize the water flow input into the steady flow outlet pipe 43 and can output it through the sampling outlet pipe 22.

[0036] Part of the water in water pipe 1 can flow back to water pipe 1 via sampling inlet pipe 21, low-pressure chamber 301 of pressure compensation container 3, steady flow inlet pipe 42, steady flow pool 4, steady flow outlet pipe 43, high-pressure chamber 302 of pressure compensation container 3, and sampling outlet pipe 22.

[0037] This utility model has only one connection port with the water pipe 1. A threaded hole can be directly drilled on the water pipe 1, and the external thread of the connector 2 can be screwed into the threaded hole through the sealing ring for fixation. The construction is very convenient, with very few modifications, which can greatly shorten the construction time and reduce the water outage time.

[0038] Connecting the pressure compensation container 3 and the flow stabilizing tank 4 via the flow stabilizing inlet pipe 42 and the flow stabilizing outlet pipe 43 can make the water flow more stable and reduce sensor detection errors.

[0039] No additional testing wastes water.

[0040] Multiple monitoring sensors 5 are spaced apart to prevent interference. Specific models can be selected according to needs, such as turbidity meter sensors. This structure is highly versatile, and unused locations can be completely blocked off.

[0041] Preferably, the pressurization device includes:

[0042] The pressurizing motor 33 has its housing fixed to the pressure compensation container 3. The shaft of the pressurizing motor 33 extends into the high-pressure chamber 302. The shaft is connected to the pressurizing blades 32. The other end of the multiple stable flow water pipes 43 is located in the negative pressure zone of the pressurizing blades 32. The pressurizing motor 33 can be a geared motor to increase power and reduce speed.

[0043] It should be noted that in this embodiment... Figure 1 The direction of water flow is given in the figure. The negative pressure zone is located above the pressurizing blade 32, and the positive pressure zone is located below the pressurizing blade 32.

[0044] Preferably, the pressure compensation container 3 is cylindrical, and the flow stabilizing tank 4 is annular, with the flow stabilizing tank 4 fitted outside the pressure compensation container 3.

[0045] For ease of installation, as a preferred option, the pressure compensation container 3 is integrated with the connector 2, and the connector 2 is detachably and sealed to the water pipe 1.

[0046] In order to clean the sensor head, the flow stabilizing tank 4 is equipped with a suspended rotating scraping ring 41. The inner side of the rotating scraping ring 41 is equipped with rotating blades, and the outer side of the rotating scraping ring 41 is equipped with a cleaning brush. The rotating blades rotate under the action of the water flow from the flow stabilizing water inlet pipe 42, and the cleaning brush can clean the monitoring sensor 5. This structure does not require additional power and has the effect of energy saving.

[0047] To further improve monitoring accuracy, when the pressurizing motor 33 accelerates, the monitoring sensor 5 does not collect signals; when the monitoring sensor 5 collects signals, the pressurizing motor 33 decelerates or even stops rotating. This scheme does not affect the real-time acquisition of water flow.

[0048] To reduce water backflow, the two pipe openings of the sampling inlet pipe 21 and the sampling outlet pipe 22, located inside the water pipe 1, are separated by a certain distance, so that the monitored water will not flow back for secondary testing.

[0049] As a preferred option, multiple pairs of steady-flow inlet pipes 42 and steady-flow outlet pipes 43 are evenly distributed.

[0050] Each pair of steady-flow inlet pipes 42 and steady-flow outlet pipes 43 are fixed in a staggered manner. It should be noted that dead zones are easily generated when the water flows in the steady-flow tank 4. In order to reduce these dead zones, they are fixed in a staggered manner. For example, if the four steady-flow outlet pipes 43 are set at the positions of the X-axis and Y-axis, then the other four steady-flow inlet pipes 42 can be set at positions that are 45 degrees apart. The steady-flow tank 4 can stabilize the flow and is not prone to dead zones, ensuring real-time water flow collection.

[0051] Preferably, the steady-flow inlet pipe 42 and the steady-flow outlet pipe 43 are tapered pipes, with the inlet of the steady-flow inlet pipe 42 being narrow and the outlet being wide; the inlet of the steady-flow outlet pipe 43 is wide and the outlet is narrow. This structure makes the water flow more stable when passing through the steady-flow pool 4, reducing resistance and vortex effects, thereby reducing interference to the monitoring sensor 5 and improving detection accuracy.

[0052] The detection medium update cycle of this invention is less than 10 seconds, which improves efficiency by 80% compared with the traditional method.

[0053] The scraping structure reduces the probe contamination rate to less than 2% per month.

[0054] Overall pressure loss <3kPa, suitable for DN50-DN600 pipelines.

Claims

1. A pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure, characterized in that it comprises: The connector (2) is fixed at one end to the water pipe (1), and a sampling inlet pipe (21) and a sampling outlet pipe (22) are installed inside the connector (2); The pressure compensation container (3) is fixed to the other end of the connector (2). The pressure compensation container (3) is divided into a low-pressure chamber (301) and a high-pressure chamber (302) by a partition (31). The low-pressure chamber (301) is connected to the water pipe (1) through the sampling inlet pipe (21), and the high-pressure chamber (302) is connected to the water pipe (1) through the sampling outlet pipe (22). The flow stabilizing tank (4) is equipped with multiple monitoring sensors (5). The flow stabilizing tank (4) is connected to one end of multiple pairs of flow stabilizing inlet pipes (42) and flow stabilizing outlet pipes (43). The other end of the multiple flow stabilizing inlet pipes (42) is connected to the low-pressure chamber (301), and the other end of the multiple flow stabilizing outlet pipes (43) is connected to the high-pressure chamber (302). The pressurizing device is fixed to the pressure compensation container (3). The pressurizing device can pressurize the water flow input into the steady flow outlet pipe (43) and can output it through the sampling outlet pipe (22). Part of the water in the water pipe (1) can flow back to the water pipe (1) through the sampling inlet pipe (21), the low-pressure chamber (301) of the pressure compensation container (3), the steady flow inlet pipe (42), the steady flow pool (4), the steady flow outlet pipe (43), the high-pressure chamber (302) of the pressure compensation container (3), and the sampling outlet pipe (22).

2. The pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure as described in claim 1, characterized in that, The pressurization device includes: The pressurizing motor (33) has its housing fixed to the pressure compensation container (3). The shaft of the pressurizing motor (33) extends into the high-pressure chamber (302). The shaft is connected to the pressurizing blade (32). The other end of the multiple stable flow outlet pipes (43) is located in the negative pressure zone of the pressurizing blade (32).

3. The pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure as described in claim 2, characterized in that, The pressure compensation container (3) is cylindrical, and the flow stabilizing tank (4) is annular, with the flow stabilizing tank (4) fitted outside the pressure compensation container (3).

4. The pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure as described in claim 2, characterized in that, The pressure compensation container (3) is integrated with the connector (2), and the connector (2) is detachably and sealed to the water pipe (1).

5. A pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure as described in any one of claims 1-4, characterized in that, The stabilizing tank (4) is equipped with a suspended rotating scraping ring (41). The inner side of the rotating scraping ring (41) is equipped with rotating blades, and the outer side of the rotating scraping ring (41) is equipped with a cleaning brush. The rotating blades rotate under the action of the water flow in the stabilizing water inlet pipe (42), and the cleaning brush can clean the monitoring sensor (5).

6. A pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure as described in any one of claims 1-4, characterized in that, When the pressurizing motor (33) accelerates, the monitoring sensor (5) does not collect signals; when the monitoring sensor (5) collects signals, the pressurizing motor (33) decelerates.

7. A pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure as described in any one of claims 1-4, characterized in that, The sampling inlet pipe (21) and the sampling outlet pipe (22) are located inside the water pipe (1) and are separated by a certain distance.

8. A pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure as described in any one of claims 1-4, characterized in that, Multiple pairs of steady-flow inlet pipes (42) and steady-flow outlet pipes (43) are evenly distributed.

9. A pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure as described in any one of claims 1-4, characterized in that, Each pair of steady-flow inlet pipes (42) and steady-flow outlet pipes (43) are fixed in a staggered manner.

10. A pipeline-type in-situ water quality monitoring device based on hydrodynamic pressure as claimed in any one of claims 1-4, characterized in that, The steady flow inlet pipe (42) and steady flow outlet pipe (43) are tapered pipes. The steady flow inlet pipe (42) has a narrow inlet and a wide outlet; the steady flow outlet pipe (43) has a wide inlet and a narrow outlet.

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