Water quality detection device

Abstract

The invention relates to a water quality detection device, which comprises: a sampling module, which at least comprises a first sampling module and a second sampling module, and the first sampling module and the second sampling module are respectively arranged at a first sampling point and a second sampling point; the multi-channel pipeline corresponds to the sampling module and at least comprises a first channel pipeline and a second channel pipeline, and the first channel pipeline and the second channel pipeline are correspondingly communicated with the first sampling module and the second sampling module respectively; the detection module is communicated with the multi-channel pipeline; the first sampling module extracts a water sample corresponding to the first sampling point and conveys the water sample to the detection module for detection through the first channel pipeline, and the second sampling module extracts a water sample corresponding to the second sampling point and conveys the water sample corresponding to the second sampling point to the detection module before the water sample corresponding to the second sampling point is conveyed to the detection module. And the water sample in the detection module is discharged through the first channel pipeline and / or the drainage pipe of the detection module. The water quality of different sampling points can be efficiently sampled and detected.

Description

Technical Field

[0001] The present invention relates to the field of water quality detection, and in particular to a water quality detection device. Background Art

[0002] Water quality testing typically involves measuring various physical, chemical, and biological parameters in water to assess its quality and ensure it meets relevant standards. To avoid biased results from sampling at a single location, water samples are often collected and tested at multiple locations across different pools. Therefore, efficient, multi-point water quality testing is crucial for a comprehensive and accurate assessment of regional water quality.

[0003] Traditional water quality testing equipment typically uses a single-channel design, requiring sampling and testing at multiple points within the pool in sequence. This requires frequent manual adjustments to the sampling locations. Consequently, its testing efficiency is limited by sampling speed, making it unable to meet the demands for efficient multi-point sampling and testing.

[0004] In view of this, providing a water quality detection device to ensure efficient sampling and detection of water quality at different sampling points, so as to significantly improve the efficiency of water quality supervision, is an urgent problem to be solved. Summary of the Invention

[0005] Based on the above analysis, the main purpose of the present invention is to provide a water quality detection device to solve the problem that traditional water quality detection equipment cannot perform multi-point efficient sampling and detection of water bodies.

[0006] In this regard, a water quality detection device of the present invention includes: a sampling module, the sampling module includes at least a first sampling module and a second sampling module, the first sampling module is arranged at a first sampling point, and the second sampling module is arranged at a second sampling point; a multi-channel pipeline, corresponding to the sampling module, the multi-channel pipeline includes at least a first channel pipeline and a second channel pipeline, the first channel pipeline is connected to the first sampling module, and the second channel pipeline is connected to the second sampling module; a detection module, the detection module is connected to the multi-channel pipeline; the first sampling module extracts the corresponding first The water sample at the sampling point is transported to the detection module for detection through the first channel pipeline, and the second sampling module extracts the water sample corresponding to the second sampling point; wherein the water sample extracted by the second sampling module is discharged through the first channel pipeline before the water sample is transported to the detection module through the second channel pipeline; and / or the detection module is further provided with a separate drain pipe, and the water sample in the detection module is discharged through the drain pipe before the water sample extracted by the second sampling module is transported to the detection module through the second channel pipeline.

[0007] Preferably, the first channel pipeline includes a first water pipe and a first diaphragm pump, and also includes at least a first sampling pipe; the second channel pipeline includes a second water pipe and a second diaphragm pump, and also includes at least a second sampling pipe; the water inlet of the first sampling pipe is connected to the first sampling module, and the water outlet of the first sampling pipe is connected to the water inlet of the first water pipe through the first diaphragm pump; the water outlet of the first water pipe is connected to the detection module; and the first water pipe is also provided with a first discharge valve and a first discharge port; the water inlet of the second sampling pipe is connected to the second sampling module, and the water outlet of the second sampling pipe is connected to the water inlet of the second water pipe through the second diaphragm pump; the water outlet of the second water pipe is connected to the detection module; and the second water pipe is also provided with a second discharge valve and a second discharge port.

[0008] Preferably, the first channel pipeline also includes a first water production pipe and a first water production valve, and the second channel pipeline also includes a second water production pipe and a second water production valve; the water inlet of the first water production pipe is connected to the water outlet of the first water supply pipe, the water outlet of the first water production pipe is connected to the detection module, and the first water production valve is used to regulate the water flow in the first water production pipe; the water inlet of the second water production pipe is connected to the water outlet of the second water supply pipe, the water outlet of the second water production pipe is connected to the detection module, and the second water production valve is used to regulate the water flow in the second water production pipe.

[0009] Preferably, a first diaphragm valve, a first regulating valve and a first pressure transmitter are correspondingly provided on the first sampling tube, and a second diaphragm valve, a second regulating valve and a second pressure transmitter are correspondingly provided on the second channel tube; the first diaphragm valve is used to adjust the opening or closing of the first sampling tube, and the first regulating valve and the first pressure transmitter are used to adjust the water sample flow rate of the first sampling tube; and the second diaphragm valve is used to adjust the opening or closing of the second sampling tube, and the second regulating valve and the second pressure transmitter are used to adjust the water sample flow rate of the second sampling tube.

[0010] Preferably, the multi-channel pipeline also includes a main drain pipe; the main drain pipe is connected to both the first drain port and the second drain port; and when the detection module is also provided with a separate drain pipe, the main drain pipe is connected to the water outlet of the drain pipe, and the drain pipe is provided with a drain valve at one end close to the detection module for controlling the discharge of water samples after detection.

[0011] Preferably, the detection module includes a sampling water tank, an ammonia nitrogen meter, an instrument probe and a probe fixing member; the first water outlet of the sampling water tank is connected to the multi-channel pipeline; when the detection module is also provided with a separate drain pipe, the second water outlet of the sampling water tank is connected to the drain pipe; the ammonia nitrogen meter is provided with an instrument panel, and the ammonia nitrogen meter is connected to the instrument probe; the instrument probe extends into the sampling water tank, contacts the water sample and is fixed to the sampling water tank through the probe fixing member; wherein, the instrument probe electrolyzes and detects the water sample, transmits the detection information to the ammonia nitrogen meter and displays it on the instrument panel.

[0012] Preferably, the detection module further includes an overflow pipe, and the water inlet of the overflow pipe is connected to the upper end of the sampling water tank.

[0013] Preferably, the first sampling module includes a first fixed bracket, a first self-cleaning membrane assembly and a first aerator, and the second sampling module includes a second fixed bracket, a second self-cleaning membrane assembly and a second aerator; the water outlet end of the first self-cleaning membrane assembly is correspondingly connected to the first channel pipeline, the first self-cleaning membrane assembly is fixedly connected above the first aerator, and the first self-cleaning membrane assembly and the first aerator are both fixed to the first fixed bracket; the first aerator is used for intermittent air backwashing of the first self-cleaning membrane assembly; the water outlet end of the second self-cleaning membrane assembly is correspondingly connected to the second channel pipeline, the second self-cleaning membrane assembly is fixedly connected above the second aerator, and the second self-cleaning membrane assembly and the second aerator are both fixed to the second fixed bracket; the second aerator is used for intermittent air backwashing of the second self-cleaning membrane assembly.

[0014] Preferably, the water quality detection device also includes a cabinet; the sampling module, the multi-channel pipeline and the detection module are all integrated in the cabinet; and the cabinet also integrates a system control module, and the system control module is used to regulate the sampling module, the multi-channel pipeline and the detection module; the system control module includes a touch screen, a control center and a remote monitoring unit; the touch screen is tilted on the front of the outside of the cabinet, and its surface is provided with sun-proof glass and a waterproof cover; the control center and the remote control unit are both integrated below the touch screen; the touch screen and the remote control unit both exchange signals with the control center; the control center is used to regulate the multi-channel pipeline to complete the transportation of water samples; the remote monitoring unit is used to continuously monitor the sampling module, the multi-channel pipeline and the detection module.

[0015] Preferably, the cabinet is further integrated with an air-conditioning module inside and provided with a sheet metal shell outside; the air-conditioning module is connected to the system control unit for receiving temperature adjustment signals and maintaining the normal operating temperature inside the cabinet; an insulation layer is filled between the sheet metal shell and the cabinet for maintaining the normal operating temperature inside the cabinet; the front of the sheet metal shell is also provided with an electrical door panel and a matching sheet metal handle, and sealing strips are affixed to each inner side of the electrical door panel.

[0016] The water quality detection device of the present invention has the following beneficial effects: First, unlike traditional water quality testing equipment that relies on frequent manual adjustment of sampling points, the present invention eliminates the need for frequent adjustment of points by providing at least a first sampling module and a second sampling module and arranging them in different sampling points respectively; wherein the above-mentioned sampling modules can be set at different points in the same pool or in different pools to improve the efficiency of water quality testing within the pool or area.

[0017] Secondly, unlike the single-pipeline design used in traditional water quality testing equipment, the present invention provides at least a first channel pipeline and a second channel pipeline, and cooperates with corresponding sampling modules. Thus, after one sampling test and water sample is discharged, the next sampling test can be quickly started. The separate channel pipelines do not contaminate each other, which can reduce the scope of pipeline cleaning before each water sample test, significantly improving the efficiency of water quality testing. Again, when the detection module of the present invention is provided with an additional drain port, it can assist the corresponding channel pipeline to quickly discharge the water sample after detection, thereby improving the overall detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a flow chart of a sampling, transporting and detecting process according to an embodiment of the present invention; Figure 2 This is a three-dimensional diagram of the multi-channel pipeline and detection module structure according to one embodiment of the present invention; Figure 3 is a rear view of a multi-channel pipeline and a detection module according to an embodiment of the present invention; Figure 4 is a side view of a second sampling tube according to an embodiment of the present invention; Figure 5 This is a three-dimensional diagram of a first water delivery pipe, a second water delivery pipe, and a main drainage pipe according to an embodiment of the present invention; Figure 6 Schematic diagram of the arrangement of the sampling module according to one embodiment of the present invention; Figure 7 is a schematic diagram of a water quality detection device according to an embodiment of the present invention; Figure 8 It is an external stereoscopic diagram of a water quality detection device according to an embodiment of the present invention.

[0019] Reference numerals: 1. sampling module, 101. self-cleaning membrane assembly, 102. aerator, 103. fixing bracket, 11. first sampling module, 12. second sampling module; 2. Multi-channel piping, 201. First sampling tube, 202. Second sampling tube, SV201. First diaphragm valve, HV201. First regulating valve, SV202. Second diaphragm valve, HV202. Second regulating valve, 211. First pressure transmitter, 212. Second pressure transmitter, 221. First diaphragm pump, 222. Second diaphragm pump, 231. First water pipe, 232. Second water pipe, SV231. First discharge valve, SV232. Second discharge valve, 241. First water production pipe, 242. Second water production pipe, SV241. First water production valve, SV242. Second water production valve, 25. Main discharge pipe; 3. Detection module, SV301. Drain valve, HV302. Sampling valve, 31. Sampling water tank, 32. Ammonia nitrogen meter, 33. Instrument probe, 34. Drain pipe, 35. Overflow pipe, 36. Probe fixing parts; 4. Cabinet, 41. Touch screen, 42. Waterproof cover, 43. Electrical door panel, 44. Sheet metal handle, 45. Formazan wheel, 46. Air pump, 47. Sampling port. DETAILED DESCRIPTION

[0020] The present invention will be described in more detail below with reference to the accompanying drawings. It should be noted that the following description of the present invention with reference to the accompanying drawings is only illustrative and not restrictive.

[0021] Where possible, the various embodiments described below may be recombined with each other to form other embodiments not shown in the following description; the various technical features described below may also be recombined with each other to form other embodiments not shown in the following description.

[0022] Example 1: Please refer to the attached Figures 1 to 7 .

[0023] In order to solve the problem that traditional water quality detection equipment cannot automatically perform multi-point efficient sampling and detection of water bodies, this embodiment provides a water quality detection device, which mainly includes: a sampling module 1, which at least includes a first sampling module 11 and a second sampling module 12, the first sampling module 11 is arranged at the first sampling point, and the second sampling module 12 is arranged at the second sampling point; a multi-channel pipeline 2, corresponding to the sampling module 1, and at least including a first channel pipeline and a second channel pipeline, the first channel pipeline and the first sampling module 11 is connected accordingly, the second channel pipeline is connected accordingly to the second sampling module 12; the detection module 3 is connected to the multi-channel pipeline 2; the first sampling module 11 extracts the water sample corresponding to the first sampling point, and transports the extracted water sample to the detection module 3 for detection through the first channel pipeline, and the second sampling module 12 extracts the water sample corresponding to the second sampling point; wherein the water sample extracted by the second sampling module 12 is discharged from the detection module 3 through the first channel pipeline before the extracted water sample is transported to the detection module 3 through the second channel pipeline.

[0024] It should be noted that: before the water quality detection device is put into operation, multiple groups of sampling modules including at least the first sampling module 11 and the second sampling module 12 are set according to actual needs, and these sampling modules 1 are grouped and arranged at different sampling points in different water pools or different points in the same sampling water pool. For example, the first sampling module 11 is arranged at the first sampling point in the first water pool, and the second sampling module 12 is arranged at the second sampling point in the second water pool. A third sampling module and a fourth sampling module may also be additionally arranged. At this time, the first sampling module 11 and the third sampling module are a group, corresponding to the first sampling point and the third sampling point in water pool a, and the second sampling module 12 and the fourth sampling module are another group, corresponding to the second sampling point and the fourth sampling point in water pool b. After the sampling module 1 extracts the water sample at the corresponding point, it is transported to the detection module 3 through the corresponding channel pipeline. The water samples corresponding to each sampling point are arranged in order. After the front water sample is tested and completely emptied through the corresponding channel pipeline, the device is backwashed with clean water. The backwash water enters from the sampling module 1 that has just been used, fills the corresponding channel pipeline and the detection module 3, and is discharged through the corresponding channel pipeline before the next test can be carried out. For example, after the water sample corresponding to the first sampling point is tested, the corresponding first channel pipeline should be opened immediately to allow the water sample to be completely discharged from the device. Then, clean water should be introduced into the first channel pipeline to thoroughly backwash the channel pipeline and the detection module 3. After backwashing, the water samples corresponding to the remaining sampling points are tested. After the testing of the sampling points in each pool is completed, the water sample test of the next sampling point in the pool can be performed.

[0025] In this embodiment, by arranging multiple sampling modules 1 at different sampling points in different water pools or at different points within the same water pool, water samples can be collected from multiple locations simultaneously and time-sharing testing can be completed, significantly improving the efficiency and coverage of water quality testing. This design not only speeds up the overall testing process, but also improves the comprehensiveness and real-time nature of monitoring data. In addition, by providing multiple independent channel pipelines, this embodiment can effectively prevent cross-contamination between different water qualities, reduce the scope of pipeline cleaning after a single test, and improve the overall detection speed. In a preferred embodiment, the first channel pipeline includes a first water pipe 231 and a first diaphragm pump 221, and also includes at least a first sampling pipe 201; the second channel pipeline includes a second water pipe 232 and a second diaphragm pump 222, and also includes at least a second sampling pipe 202; the water inlet of the first sampling pipe 201 is connected to the first sampling module 11, and the water outlet of the first sampling pipe 201 is connected to the water inlet of the first water pipe 231 through the first diaphragm pump 221; the water outlet of the first water pipe 231 is connected to the detection module Group 3 is connected; and the first water pipe 231 is also provided with a first discharge valve SV231 and a first discharge port for discharging the water sample after detection; the water inlet of the second sampling pipe 202 is connected to the second sampling module 12, and the water outlet of the second sampling pipe 202 is connected to the water inlet of the second water pipe 232 through the second diaphragm pump 222; the water outlet of the second water pipe 232 is connected to the detection module 3; and the second water pipe 232 is also provided with a second discharge valve SV232 and a second discharge port for discharging the water sample after detection.

[0026] It should be noted that: when the device is running, the first sampling module 11 collects water samples from the first sampling point. The water sample first enters the device through the first sampling tube 201, is transported to the first water pipe 231 via the connected diaphragm pump, and then passes into the detection module 3 through the first water pipe 231 to complete the detection. In order to ensure the cleanliness of the inside of the detection module 3 and the first water pipe 231, the first discharge valve SV231 is opened and / or the drain port 34 is opened, so that the water sample after detection can be discharged from the device through the first discharge port and the drain port 34. Then, the clean water is filled into the first pipeline passage and the detection module 3, and the water is emptied after backwashing. Similarly, in the second channel pipeline, the second sampling module 12 also operates according to the same process to collect water samples from the second sampling point and complete the detection.

[0027] This embodiment not only achieves efficient and independent collection and transportation of water samples from different sampling points, but also ensures the accurate emptying of water samples in each channel through the diaphragm pump, water pipe, and drainage structure installed in each channel pipeline, avoiding cross contamination between channel pipelines. The diaphragm pump, as a power source, can provide water samples from different sampling points and different time periods for the detection module 3. In addition, since each channel pipeline is independently configured, the entire system can quickly switch to the detection of the next sample after backwashing the used structure, greatly improving the detection efficiency, reducing the need for manual intervention, and providing an efficient and reliable solution for real-time monitoring of water quality in water areas.

[0028] In a further preferred embodiment, the first channel pipeline also includes a first water production pipe 241 and a first water production valve SV241, and the second channel pipeline also includes a second water production pipe 242 and a second water production valve SV242; the water inlet of the first water production pipe 241 is connected to the water outlet of the first water supply pipe 231, the water outlet of the first water production pipe 241 is connected to the detection module 3, and the first water production valve SV241 is used to regulate the water flow in the first water production pipe 241; the water inlet of the second water production pipe 242 is connected to the water outlet of the second water supply pipe 232, the water outlet of the second water production pipe 242 is connected to the detection module 3, and the second water production valve SV242 is used to regulate the water flow in the second water production pipe 242.

[0029] It should be noted that during operation, in the first channel pipeline, after the first sampling module 11 collects a water sample from its corresponding sampling point, the water sample first enters through the first sampling tube 201. The first diaphragm pump 221 then activates and pumps the water sample from the outlet of the first sampling tube 201 into the inlet of the first water supply pipe 231. The water sample flows along the first water supply pipe 231 to its outlet, then enters the inlet of the connected first water production pipe 241, and finally enters the detection module 3 through the outlet of the first water production pipe 241 for water quality analysis. After the test is completed, to ensure the cleanliness of the system, the first discharge valve SV231 is opened, allowing the tested water sample to be completely discharged from the device through the first discharge port. Similarly, in the second channel pipeline, the second sampling module 12 operates according to the same process.

[0030] In this embodiment, since each water production pipe, sampling pipe, and water delivery pipe is independently configured, the entire system can quickly switch and process water samples from multiple sampling points, significantly improving detection efficiency and system flexibility, providing an efficient and reliable solution for real-time water quality monitoring in water areas. This improvement effectively solves the problem of traditional water quality testing equipment's inability to automatically and efficiently sample and test at multiple points, while significantly reducing the need for cleaning and the degree of manual intervention.

[0031] In a further preferred embodiment, the first channel pipeline further includes a third sampling tube, and the second channel pipeline further includes a fourth sampling tube. In this case, the first and third sampling tubes converge at a common outlet and are connected to the diaphragm pump through this outlet. The inlets and outlets of all sampling tubes face downward and are bent at their highest points, thereby preventing contamination between the water in the different sampling tubes.

[0032] In a further preferred embodiment, the first water supply pipe 231 and the second water supply pipe 232 are both arranged below all the sampling pipes, and at this time the first water production pipe 241 and the second water production pipe 242 extend vertically upward respectively so as to be connected with the detection module 3; so that when the detection water sample is discharged along the pipeline passage, it can be discharged in turn along the water production pipe and the water supply pipe due to gravity sedimentation.

[0033] In a further preferred embodiment, the first and second water production pipes 241, 242 are connected to the same main pipe at their upper ends, which is then connected to the detection module 3. A three-way valve is installed at the connection point between the first and second water production pipes 241, 242, and the main pipe. This reduces piping complexity, conserves piping resources, and prevents cross-contamination between the first and second channel pipes. A flow meter can also be installed on the main pipe to monitor the water flow rate and flow velocity within the pipe.

[0034] In another preferred embodiment, a first diaphragm valve SV201, a first regulating valve HV201 and a first pressure transmitter 211 are correspondingly provided on the first sampling tube 201, and a second diaphragm valve SV202, a second regulating valve HV202 and a second pressure transmitter 212 are correspondingly provided on the second channel tube; the first diaphragm valve SV201 is used to adjust the opening or closing of the first sampling tube 201, and the first regulating valve HV201 and the first pressure transmitter 211 are used to adjust the water sample flow rate of the first sampling tube 201; and the second diaphragm valve SV202 is used to adjust the opening or closing of the second sampling tube 202, and the second regulating valve HV202 and the second pressure transmitter 212 are used to adjust the water sample flow rate of the second sampling tube 202.

[0035] In this embodiment, when the water sample is transported to the first sampling tube 201 through the first sampling module 11, the water sample is blocked by the diaphragm valve, intercepted by the regulating valve, and detected by the pressure transmitter. In actual work, the flow rate of the water sample can be controlled by adjusting each diaphragm valve, each regulating valve and each pressure transmitter, so as to more accurately control the flow rate in the entire pipeline and prevent local damage to the pipeline.

[0036] In addition, the connection design of independent channel pipelines and corresponding diaphragm valves can ensure that the water samples at each sampling point are completely independent in the pipeline. This design can not only ensure that the pipelines do not contaminate each other, but also quickly isolate a channel pipeline when it is damaged, while the other channels continue to operate, thus ensuring the continuity and stability of the overall detection process.

[0037] In another preferred embodiment, the multi-channel pipeline 2 further includes a main drain pipe 25, which is in communication with both the first and second drain ports. The main drain pipe 25 is capable of combining all the test water discharged from the first and second drain ports. If a dedicated drain pool is provided, the test water is discharged into the drain pool. If no drain pool is provided, the test water is returned to the original drain pool.

[0038] In a further preferred embodiment, the first discharge port and the second discharge port are respectively connected to the first port and the second port of the tee, and the third port of the tee is connected to the port opened on the main discharge pipe 25, which is also used to discharge water samples or backwash water after detection.

[0039] In a further preferred embodiment, an electric heating wire is provided in each channel pipe to maintain the normal operating temperature of each channel pipe, that is, each channel pipe is heated accordingly in cold weather to prevent it from being unable to operate normally due to freezing in extremely cold weather.

[0040] In another preferred embodiment, the multi-channel pipeline 2 also includes a sampling valve HV302; the sampling valve HV302 is connected between the first water production pipe 241, the second water production pipe 242 and the detection module 3, and is used to retain water quality samples of the current detection water sample under the same time and conditions, so as to facilitate sending the samples to the laboratory for re-inspection.

[0041] Example 2 Please refer to the attached Figure 1 ~Attached Figure 3 , Attachment Figure 5 , Attachment Figure 7 .

[0042] This embodiment provides a water quality testing device, the basic structure of which is based on that of Embodiment 1. Unlike Embodiment 1, in this embodiment, the testing module 3 is further provided with a separate drain pipe 34 for discharging the tested water sample. In this embodiment, before the water sample extracted by the second sampling module 12 is transported to the testing module 3 via the second channel pipe, the water sample in the testing module 3 can be discharged through either the first channel pipe, the drain pipe 34, or both.

[0043] In this embodiment, a drain valve SV301 is provided at one end of the drain pipe 34 close to the detection module 3 to control the discharge of the water sample after detection; In this embodiment, if the multi-channel pipeline 2 is also provided with a main drain pipe 25, the main drain pipe 25 is also connected to the outlet of the drain pipe 34; the main drain pipe 25 can combine all the test water discharged from the first drain port, the second drain port and the outlet of the drain pipe 34.

[0044] Example 3 Please refer to the attached Figures 1 to 3 , Attachment Figure 7 .

[0045] Based on the basic structure of a water quality detection device in Example 1 and Example 2, this embodiment further refines the detection device to further achieve accurate detection of ammonia nitrogen indicators in water samples. The detection module 3 of this embodiment includes a sampling water tank 31, an ammonia nitrogen meter 32, an instrument probe 33 and a probe fixing part 36; the first water outlet of the sampling water tank 31 is connected to the multi-channel pipeline 2, and when the detection module 3 is also provided with a separate drain pipe 34, the second water outlet of the sampling water tank is connected to the drain pipe 34; the ammonia nitrogen meter 32 is provided with an instrument panel, and the ammonia nitrogen meter 32 is electrically connected to the instrument probe 33; the instrument probe 33 extends into the sampling water tank 31, contacts the water sample and is fixed to the sampling water tank 31 through the probe fixing part 36; wherein, the instrument probe 33 electrolyzes and detects the water sample, transmits the detection information to the ammonia nitrogen meter 32 and displays it on the instrument panel.

[0046] It should be noted that: when the water quality detection device of this embodiment is in operation, the water sample enters the sampling water tank 31 along the first water inlet through the multi-channel pipeline 2, and the nitric nitrogen probe and the ammonia nitrogen probe of the ammonia nitrogen meter 32 are in full contact with the water sample under the positioning of the probe fixing part 36. It detects the ammonia nitrogen index in the water sample in real time through electrolysis reaction, and transmits the detection signal to the ammonia nitrogen meter 32; after receiving the data, the ammonia nitrogen meter 32 synchronously displays the ammonia nitrogen and nitric nitrogen concentration values ​​on the instrument panel, thereby realizing rapid and visual monitoring of key pollution indicators in the water body.

[0047] In a preferred embodiment, the detection module 3 also includes an overflow pipe 35; the water inlet of the overflow pipe 35 is connected to the upper end of the sampling water tank 31. If the amount of water sample introduced into the sampling module 1 during a single detection is too much, it can be discharged from the sampling water tank 31 through the overflow pipe 35 to avoid flooding the ammonia nitrogen meter 32.

[0048] In a further preferred embodiment, when the detection module 3 is also provided with a separate drain pipe 34, the water outlet of the overflow pipe 35 is connected to the drain pipe 34. If the amount of water sample introduced into the sampling module 1 during a single detection is too much, it can be connected to the drain pipe 34 through the overflow pipe 35 and discharged outside the device.

[0049] In a preferred embodiment, the detection probe adopts a round rod-shaped structure design, which is modularly assembled through a removable fixing and a preset mounting position on the upper back of the cabinet 4. Its fixing components, such as a snap-on or threaded locking structure, support rapid removal and replacement of the probe to accommodate regular maintenance or sensor calibration needs. The detection probe is electrically connected to the signal input terminal of the ammonia nitrogen meter 32 via a signal transmission cable. The ammonia nitrogen meter 32 has a built-in data processing module that can convert the component concentration electrical signal detected by the probe into standardized data, which can be displayed on the instrument panel or transmitted to other devices for visual observation.

[0050] Example 4 Please refer to the attached Figure 1 , Attachment Figure 6 .

[0051] Based on the basic structure of a water quality detection device in Example 1, Example 2, and Example 3, this embodiment further refines the self-cleaning and anti-clogging functions of the sampling module 1 to further improve sampling efficiency and long-term operational reliability. The first sampling module 11 includes a first fixed bracket, a first self-cleaning membrane assembly, and a first aerator, and the second sampling module 12 includes a second fixed bracket, a second self-cleaning membrane assembly, and a second aerator; the water outlet of the first self-cleaning membrane assembly is correspondingly connected to the first channel pipeline, the first self-cleaning membrane assembly is fixedly connected above the first aerator, and the first self-cleaning membrane assembly and the first aerator are both fixed to the first fixed bracket; the first aerator is used for intermittent air backwashing of the first self-cleaning membrane assembly; the water outlet of the second self-cleaning membrane assembly is correspondingly connected to the second channel pipeline, the second self-cleaning membrane assembly is fixedly connected above the second aerator, and the second self-cleaning membrane assembly and the second aerator are both fixed to the second fixed bracket; the second aerator is used for intermittent air backwashing of the second self-cleaning membrane assembly.

[0052] This embodiment realizes the automatic anti-blocking function of the sampling process through the coordinated design of the self-cleaning module assembly 101 and the aerator 102: the aerator 102 intermittently outputs airflow to flush the sampling channel, effectively removing the deposition of pollutants such as algae and suspended matter, significantly reducing the risk of blockage, and ensuring the continuity and accuracy of water sample collection; at the same time, the fixed bracket 103 ensures the stable installation of the component, reduces the frequency of manual maintenance, and improves the long-term operational reliability of the device in complex water environments.

[0053] It should be noted that when using sampling module 1 for the first time, it must be backwashed with clean water to squeeze out the air inside the membrane while filling it with clean water. Then, negative pressure suction is applied to produce water. The self-cleaning membrane components of sampling module 1 contain a large amount of protective agents, such as glycerin. These substances can quickly produce a high amount of COD. Therefore, when using sampling module 1 for the first time, care must be taken to handle the initial produced water. Also, during initial commissioning, the produced water may contain a large amount of foam due to the presence of glycerin. This is normal. While meeting the required water output, the suction negative pressure should be as low as possible. The suction pressure can be read on the control cabinet panel. For normal and effective operation, the negative pressure should be controlled between 10 kPa and 30 kPa, with an initial range of 5 kPa to 10 kPa being optimal.

[0054] In addition, when the effective negative pressure of sampling module 1 exceeds 50kPa, sampling module 1 needs to be offline chemically cleaned. Pressure sensors, flow sensors, water pumps, fans, solenoid valves and other components should be inspected regularly and replaced promptly when necessary. When the intelligent real-time online detection equipment is shut down, dehydration and drying of the sampling unit should be prevented. The membrane filament should be kept moist and exposed to air for no more than 30 minutes. It is strictly forbidden to expose it to wind, rain or sunlight. In winter, the sampling unit must be stored in a heat-insulated manner to prevent the membrane filament from freezing. In addition, the method for cleaning the sampling module 1 includes: slowly removing the self-cleaning membrane assembly 101 from the fixed bracket 103, flushing the membrane surface with clean water to remove the sludge attached to the membrane surface; soaking it in 800ppm~1000ppm NaClO solution (sodium hypochlorite) mixed with 0.1% concentration NaOH for 4~24 hours to kill bacteria attached to the membrane surface and remove organic matter and colloidal substances on the membrane surface; when sampling some wastewater with high salt content, consider soaking it in 0.5%~2% HCL / citric acid solution for 2~12 hours to remove inorganic salt contamination to achieve the best cleaning effect.

[0055] Example 5 Please refer to the attached Figure 1 ~Attached Figure 3 , Attachment Figure 6 ~Attached Figure 8 .

[0056] Based on the basic structure of a water quality detection device in Example 1, Example 2, Example 3, and Example 4, this embodiment further refines the water quality detection device to further improve the integration, human-computer interaction efficiency, and remote monitoring capability. The water quality detection device also includes a cabinet 4; the sampling module 1, the multi-channel pipeline 2, and the detection module 3 are all integrated in the cabinet 4; and the cabinet 4 also integrates a system control module, which is used to control the sampling module 1, the multi-channel pipeline 2, and the detection module 3; the system control module includes a touch screen 41, a control center, and a remote monitoring unit; the touch screen 41 is tilted and arranged on the front of the outside of the cabinet 4, and its surface is provided with sun-proof glass and a waterproof cover 42; the control center and the remote control unit are both integrated below the touch screen 41; the touch screen 41 and the remote control unit both exchange signals with the control center; the control center is used to control the multi-channel pipeline 2 to complete the transportation of water samples; the remote monitoring unit is used to continuously monitor the sampling module 1, the multi-channel pipeline 2, and the detection module 3.

[0057] In this embodiment, the system control module implements human-machine interaction and remote monitoring functions through a touch screen 41, a control center, and a remote monitoring unit. The touch screen 41 is tilted and positioned on the front of the cabinet 4. Its surface is equipped with sunscreen glass and a waterproof cover 42 to protect against strong light and rain. It interacts with the control center's signals, supporting real-time display of the sampling module 1's layout and sampling status, the multi-channel pipeline 2's start and stop information, and other information, such as the detection data of each diaphragm pump, each regulating valve, and each diaphragm valve, as well as receiving and detecting module 3, and controlling the water level of the water sample in detection module 3. Furthermore, the device can be directly operated via the touch screen. The remote monitoring unit is integrated below the touch screen 41 and continuously monitors the operating status of the sampling, transport, and detecting modules 3 via a wireless network. If an anomaly is detected, it immediately sends an alarm signal to the control center. The control center then notifies the operator via a cloud-based alarm, achieving coordinated management of remote warning and local control, thereby improving operational convenience and system reliability.

[0058] In addition, before the water quality detection device of this embodiment is put into operation, basic configuration is required. Connect the power supply of cabinet 4 (220±22V AC, 50±0.5Hz, 10A), configure the RS485 interface to execute the MODBUS RTU protocol and the Ethernet interface to execute the MODBUS TCP protocol; then connect the pipeline, connect the diaphragm pump of the water inlet conduit of the multi-channel pipeline 2, and ensure that the water inlet end of the diaphragm pump is connected to the corresponding sampling module 1. After the installation is completed, it is necessary to check the integrity of the detection module 3, the multi-channel pipeline 2, and the sampling module 1, confirm that the multi-channel pipeline 2 is designed to be detachable without external force, and finally complete the electrical connection and verify the control function of the system control module on each system to ensure the safe and stable operation of the device.

[0059] In a further preferred embodiment, the environmental control and sealing structure of cabinet 4 are further refined to further enhance the device's operational stability and protection level in extreme environments. Cabinet 4 also incorporates an integrated air conditioning module within it, while a sheet metal housing is provided on the outside. The air conditioning module is connected to the system control unit, receiving temperature control signals and maintaining the normal operating temperature within cabinet 4. An insulation layer is placed between the sheet metal housing and cabinet 4 to maintain the normal operating temperature within cabinet 4. The front of the sheet metal housing also features an electrical door panel 43 and a matching sheet metal handle 44. Sealing strips are affixed to each inner edge of the electrical door panel 43.

[0060] This embodiment integrates the air-conditioning module and the insulation layer design, and through the systematic operation of the PID algorithm and the polyurethane insulation layer, it can achieve precise control and constant maintenance of the internal temperature of the cabinet 4, ensuring the stable operation of the detection equipment in extreme environments; the sheet metal shell and sealing strip structure significantly improve the dustproof, waterproof and heat-insulating performance, and the electrical door panel 43 and the handle optimize the maintenance convenience, thereby enhancing the overall environmental adaptability and long-term reliability of the equipment.

[0061] In a preferred embodiment, a plurality of Forma wheels 45 are provided at the bottom of the cabinet 4. The Forma wheels 45 can be moved forward, backward, left, and right on a horizontal plane to adjust the levelness of the cabinet 4. For example, four Forma wheels 45 can be provided at the bottom to enable stable displacement to find the most suitable placement location.

[0062] In another preferred embodiment, EPDM sealing strips are used on all four sides to prevent water from accumulating on the top of the cabinet 4 and entering through the door gap. The insulation layer is set to 50mm, which is used for heat preservation and cooling in different seasons. This insulation layer can properly ensure the normal operating temperature inside the cabinet 4.

[0063] In another preferred embodiment, a back door is installed inside the sheet metal housing, with a built-in LED backlight. When the door is open, the light turns on, and when it is closed, the light turns off. The door can also be opened and closed 180 degrees. The built-in LED backlight and the 180-degree opening and closing design enable a linked lighting function, automatically providing sufficient lighting during maintenance to enhance operational safety and convenience. The wide-angle opening and closing facilitates equipment maintenance, optimizes the human-machine interaction experience, and reduces the risk of misoperation.

[0064] In another preferred embodiment, the cabinet 4 further integrates an air pump 46 and an air outlet pipe connected thereto. The air outlet pipe is also connected to each sampling module 1 for intermittently supplying air to each sampling module 1. After the water sample testing of a single water tank or a single sampling point is completed, the air pump 46 can intermittently supply air to the air outlet pipe to clean the sampling module 1, effectively removing residual impurities in the membrane module or pipeline, and improving the long-term operational stability and cleaning efficiency of the system.

[0065] In another preferred embodiment, a transparent observation window is further provided on the cabinet 4, and the sampling water tank 31 is transparent; the transparent observation window is arranged on the back of the cabinet 4, corresponding to the position of the sampling water tank 31, and is used to observe the working status of the sampling water tank 31, including the water quality status, detection status and flow status of the water sample.

[0066] In another preferred embodiment, a sampling port 47 adapted to the sampling valve HV302 is further provided on the side of the cabinet 4 for collecting water samples for testing at different time periods and sampling points.

[0067] It should be understood that the embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A water quality detection device, characterized in that: include: A sampling module, the sampling module at least comprising a first sampling module and a second sampling module, the first sampling module being arranged at a first sampling point, and the second sampling module being arranged at a second sampling point; a multi-channel pipeline corresponding to the sampling module, the multi-channel pipeline comprising at least a first channel pipeline and a second channel pipeline, the first channel pipeline correspondingly communicating with the first sampling module, and the second channel pipeline correspondingly communicating with the second sampling module; a detection module, the detection module being in communication with the multi-channel pipeline; The first sampling module extracts a water sample corresponding to the first sampling point and transports the water sample to the detection module for detection through the first channel pipeline, and the second sampling module extracts a water sample corresponding to the second sampling point; wherein Before the water sample extracted by the second sampling module is transported to the detection module through the second channel pipeline, the water sample in the detection module is discharged through the first channel pipeline; and / or The detection module is also provided with a separate drain pipe, and the water sample extracted by the second sampling module is discharged through the drain pipe before being transported to the detection module through the second channel pipeline.

2. The water quality detection device according to claim 1, wherein The first channel pipeline includes a first water pipe and a first diaphragm pump, and also includes at least a first sampling tube; the second channel pipeline includes a second water pipe and a second diaphragm pump, and also includes at least a second sampling tube; The water inlet of the first sampling tube is connected to the first sampling module, and the water outlet of the first sampling tube is connected to the water inlet of the first water pipe through the first diaphragm pump; the water outlet of the first water pipe is connected to the detection module; and The first water delivery pipe is further provided with a first discharge valve and a first discharge port; The water inlet of the second sampling tube is connected to the second sampling module, and the water outlet of the second sampling tube is connected to the water inlet of the second water pipe through the second diaphragm pump; the water outlet of the second water pipe is connected to the detection module; and The second water delivery pipe is further provided with a second discharge valve and a second discharge port.

3. The water quality detection device according to claim 2, characterized in that: The first channel pipeline further includes a first water production pipe and a first water production valve, and the second channel pipeline further includes a second water production pipe and a second water production valve; The water inlet of the first water production pipe is connected to the water outlet of the first water delivery pipe, the water outlet of the first water production pipe is connected to the detection module, and the first water production valve is used to regulate the water flow in the first water production pipe; The water inlet of the second water production pipe is connected to the water outlet of the second water delivery pipe, the water outlet of the second water production pipe is connected to the detection module, and the second water production valve is used to regulate the water flow in the second water production pipe.

4. The water quality detection device according to claim 2, characterized in that The first sampling tube is correspondingly provided with a first diaphragm valve, a first regulating valve and a first pressure transmitter, and the second channel tube is correspondingly provided with a second diaphragm valve, a second regulating valve and a second pressure transmitter; The first diaphragm valve is used to adjust the opening or closing of the first sampling tube, and the first regulating valve and the first pressure transmitter are used to adjust the water sample flow rate of the first sampling tube; and The second diaphragm valve is used to adjust the opening or closing of the second sampling tube, and the second regulating valve and the second pressure transmitter are used to adjust the water sample flow rate of the second sampling tube.

5. The water quality detection device according to claim 2, characterized in that The multi-channel pipeline also includes a main drain pipe; The main discharge pipe is connected to both the first discharge port and the second discharge port; and When the detection module is also provided with a separate drain pipe, the main drain pipe is connected to the water outlet of the drain pipe, and an end of the drain pipe close to the detection module is provided with an emptying valve for controlling the discharge of the water sample after detection.

6. The water quality detection device according to claim 1, characterized in that: The detection module includes a sampling water tank, an ammonia nitrogen meter, an instrument probe and a probe fixing part; The first water outlet of the sampling water tank is connected to the multi-channel pipeline; when the detection module is also provided with a separate drain pipe, the second water outlet of the sampling water tank is connected to the drain pipe; The ammonia nitrogen meter is provided with an instrument panel, and the ammonia nitrogen meter is connected to the instrument probe; The instrument probe extends into the sampling water tank, contacts the water sample and is fixed to the sampling water tank through the probe fixing member; The instrument probe electrolyzes and detects the water sample, transmits the detection information to the ammonia nitrogen meter and displays it on the instrument panel.

7. The water quality detection device according to claim 1, characterized in that: The detection module also includes an overflow pipe, and the water inlet of the overflow pipe is connected to the upper end of the sampling water tank.

8. The water quality detection device according to claim 1, characterized in that: The first sampling module includes a first fixed bracket, a first self-cleaning membrane assembly and a first aerator, and the second sampling module includes a second fixed bracket, a second self-cleaning membrane assembly and a second aerator; The water outlet end of the first self-cleaning membrane assembly is correspondingly connected to the first channel pipeline. The first self-cleaning membrane assembly is fixedly connected above the first aerator, and the first self-cleaning membrane assembly and the first aerator are both fixed to the first fixing bracket; the first aerator is used for intermittent air backwashing of the first self-cleaning membrane assembly; The water outlet end of the second self-cleaning membrane assembly is correspondingly connected to the second channel pipeline, the second self-cleaning membrane assembly is fixedly connected above the second aerator, and the second self-cleaning membrane assembly and the second aerator are both fixed to the second fixed bracket; the second aerator is used for intermittent air backwashing of the second self-cleaning membrane assembly.

9. The water quality detection device according to any one of claims 1 to 8, characterized in that: The water quality detection device also includes a cabinet; The sampling module, the multi-channel pipeline and the detection module are all integrated in the cabinet; The cabinet also integrates a system control module, which is used to control the sampling module, the multi-channel pipeline and the detection module; The system control module includes a touch screen, a control center and a remote monitoring unit; The touch screen is tilted and arranged on the front of the exterior of the cabinet, and a sun-proof glass and a waterproof cover are provided on the surface thereof; the control center and the remote control unit are both integrated below the touch screen; The touch screen and the remote control unit both exchange signals with the control center; The control center is used to regulate the multi-channel pipeline to complete the transportation of water samples; The remote monitoring unit is used to continuously monitor the sampling module, the multi-channel pipeline and the detection module.

10. The water quality detection device according to claim 9, characterized in that: The cabinet is also integrated with an air conditioning module inside and a sheet metal shell outside; The air conditioning module is connected to the system control unit and is used to receive temperature adjustment signals and maintain the normal operating temperature inside the cabinet; An insulation layer is filled between the sheet metal shell and the cabinet to maintain the normal operating temperature inside the cabinet; the front of the sheet metal shell is also provided with an electrical door panel and a matching sheet metal handle, and sealing strips are affixed to each inner side of the electrical door panel.

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