Water quality detection device for water conservancy informatization water conservancy engineering

Abstract

The utility model discloses a water quality detection device for water conservancy informatization water conservancy project relates to water conservancy engineering detection technical field, including mounting frame body, sampling subassembly, flow detection subassembly, water quality detection subassembly, control transmission unit and self -cleaning subassembly, sampling subassembly, flow detection subassembly and water quality detection subassembly all are integrated to set up on mounting frame body, the utility model integrates flow detection subassembly and water quality detection subassembly in same frame body, realizes the synchronous collection of hydraulic parameter and water quality parameter, promotes the time -sequential matching degree and spatial correlation of two kinds of data, provides multi -dimensional synchronous data support for water conservancy informatization scheduling, through adjustable structure design of sampling subassembly, expands the depth coverage of sampling, promotes the spatial representativeness of the detection water sample, avoids the data limitation that single point fixed sampling brings.

Description

Technical Field

[0001] This utility model relates to a water quality testing device for water conservancy projects, which is an information-based water conservancy project. It relates to the field of water conservancy project testing technology, and in particular to an integrated testing device that integrates flow measurement and water quality monitoring functions. It is suitable for the synchronous monitoring of hydraulic parameters and water environment parameters of various water conservancy projects such as rivers, reservoirs, and irrigation areas. Background Technology

[0002] In the operation and management system of water conservancy projects, water quality testing is a core technical support link for water resource protection, water environment management, and refined water allocation. With the continuous advancement of smart water conservancy and water conservancy informatization in China, integrated and automated water quality testing devices are gradually replacing the traditional manual sampling and testing mode and are widely deployed in various water conservancy project scenarios. They can realize the automatic collection, local storage, and remote transmission of water parameters, greatly improving monitoring efficiency and data timeliness, and providing basic data support for the digital management and control of water conservancy projects.

[0003] The existing technology has the following problems:

[0004] 1. Most devices adopt a separate deployment method for water quality detection and flow detection. There is an inherent deviation in the timing of the two types of data collection, making it difficult to achieve accurate correlation and matching between hydraulic parameters and water quality parameters. This makes it impossible to provide synchronous multi-dimensional data support for water conservancy information scheduling. Furthermore, the separate installation increases the complexity of on-site construction and operation and maintenance, and the adaptability to different engineering scenarios is relatively limited.

[0005] 2. When the detection device is submerged or exposed to natural water bodies for a long time, the sampling path and sensor surface are prone to the adhesion of silt, algae and various water bodies, which causes a decrease in sampling efficiency and a continuous decline in detection accuracy. Existing devices mostly rely on manual cleaning and maintenance by going underwater regularly, which results in high operation and maintenance costs and safety risks associated with underwater operations. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned shortcomings in the existing technology and provide a water quality detection device for water conservancy information engineering. By integrating flow detection and water quality detection functions and combining them with an in-situ automatic cleaning structure, it solves the problems of poor data correlation and high operation and maintenance costs of existing devices.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A water quality testing device for water conservancy projects using information technology integrates a sampling component, a flow detection component, and a water quality testing component. Natural water samples extracted by the sampling component are transported to the flow detection component and the water quality testing component respectively, achieving synchronous acquisition of hydraulic parameters and water quality parameters. Self-cleaning components are installed at the sampling path and the detection element to perform in-situ cleaning and maintenance according to preset logic. The entire device is connected to the water conservancy information management and control network through a control and transmission unit, enabling remote data uploading and remote management and control of the operating status.

[0009] Furthermore, the sampling component adopts a height-adjustable sampling head structure, and the sampling depth can be adjusted by the driving component to adapt to the sampling requirements under different water level conditions; the water conveyance channel adopts a diversion design, connecting the flow measurement cavity and the detection pool respectively, ensuring that the two types of detection do not interfere with each other. The flow detection component collects flow rate and velocity data through the sensing unit embedded in the flow measurement cavity, and the water quality detection component collects water quality indicators through the multi-parameter sensing unit placed in the detection pool. The two types of signals are synchronously connected to the control transmission unit for matching processing.

[0010] Furthermore, the self-cleaning component uses a cleaning medium supply unit as its power source. It outputs cleaning medium through spray purging units deployed at the sampling end, the inner wall of the pipeline, and the sensor surface to achieve comprehensive cleaning of the detection path and components. The control and transmission unit integrates data acquisition, logic processing, and wireless transmission functions. It can automatically run the detection and cleaning program locally or receive instructions from a remote platform to adjust operating parameters. The upper part of the mounting frame is equipped with a protective shell to house electrical components, and the lower part is equipped with a fixed structure to adapt to the installation requirements of different water conservancy projects. The supporting power supply unit provides power support for the entire device.

[0011] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0012] 1. This utility model integrates the flow detection component and the water quality detection component into the same frame, realizing the synchronous acquisition of hydraulic parameters and water quality parameters, improving the temporal matching degree and spatial correlation of the two types of data, and providing multi-dimensional synchronous data support for water conservancy information scheduling.

[0013] 2. This utility model expands the depth coverage of sampling through the adjustable structural design of the sampling component, improves the spatial representativeness of the tested water sample, avoids the data limitations caused by single-point fixed sampling, and ensures the engineering reference value of the test results.

[0014] 3. This utility model is equipped with an in-situ self-cleaning component, which can automatically clean the sampling path and the surface of the detection sensor according to the set logic, effectively removing water adhering objects and sediments, and maintaining the long-term stability of the detection path and the detection accuracy of the sensing element. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the sampling component and the detection component in this utility model;

[0017] Figure 3 This is a block diagram showing the module connection of the control and transmission unit in this utility model.

[0018] In the diagram: 1. Mounting frame; 2. Sampling assembly; 21. Lifting sampling head; 22. Water delivery path; 23. Drive unit; 3. Flow detection assembly; 31. Flow measurement chamber; 32. Flow sensing unit; 4. Water quality detection assembly; 41. Detection tank; 42. Multi-parameter sensing unit; 43. Drainage path; 5. Self-cleaning assembly; 51. Cleaning medium supply unit; 52. Spray purging unit; 6. Control and transmission unit; 61. Data acquisition module; 62. Processing module; 63. Wireless transmission module; 7. Protective housing; 8. Power supply unit. Detailed Implementation

[0019] like Figure 1-3 As shown in the figure, this implementation plan provides a water quality testing device for water conservancy information engineering. The device consists of a mounting frame 1, a sampling component 2, a flow detection component 3, a water quality detection component 4, a control and transmission unit 6, and a self-cleaning component 5. It is equipped with a protective shell 7 and a power supply unit 8. The entire device can independently complete the entire process of sampling, testing, data transmission, and self-maintenance.

[0020] The mounting frame 1 serves as the load-bearing base of the device and is made of water-resistant and corrosion-resistant rigid engineering materials. It is divided into an upper installation area and a lower working area. The upper installation area is equipped with a sealed protective shell 7 to house electrical control components and isolate them from water vapor and dust corrosion. The lower working area extends into the water body and is used to deploy sampling and detection functional components. The bottom of the mounting frame 1 is equipped with a universal fixing structure, which can be fixedly connected to the embankment, channel sidewall, trash rack, monitoring pile and other structures of water conservancy projects by means of bolt anchoring, plugging or clamp locking, etc., to ensure the operational stability of the device under the impact of water flow.

[0021] The sampling component 2 is located in the lower working area of ​​the mounting frame 1. It consists of a lifting sampling head 21, a water conveyance channel 22, and a driving component 23. The lifting sampling head 21 is assembled with the mounting frame 1 through a vertical sliding structure. The driving component 23 is fixed on the lower support of the mounting frame 1, and its output end is connected to the lifting sampling head 21 for transmission. It can drive the sampling head to reciprocate vertically to adjust the sampling depth and adapt to the sampling needs under different water level conditions such as flood season and dry season. The water conveyance channel 22 is laid out with corrosion-resistant pipes. Its inlet end is sealed to the lifting sampling head 21, and the outlet end adopts a diversion structure to divide into two paths, which are respectively connected to the flow detection component 3 and the water quality detection component 4, so as to realize the diversion and transportation of water samples and the independent operation of the two types of detection.

[0022] The flow detection component 3 is integrated into the pipeline section at the bottom of the mounting frame 1. It includes a flow measurement cavity 31 and a flow sensing unit 32. The flow measurement cavity 31 is connected in series in the main channel of the water conveyance channel 22. The inside of the cavity is smoothed to reduce the interference of water flow turbulence on the detection results. The flow sensing unit 32 is embedded in the inner wall of the flow measurement cavity 31. Its detection surface is adapted to the water flow direction. When the water sample flows through the flow measurement cavity 31, the flow sensing unit 32 can collect hydraulic parameters such as water velocity and flow rate in real time. The signal output terminal of the flow sensing unit 32 is connected to the control transmission unit 6. The collected hydraulic data and water quality data are synchronized in time.

[0023] The water quality testing component 4 is also integrated into the lower part of the mounting frame 1. It includes a testing pool 41 and a multi-parameter sensing unit 42. The testing pool 41 is connected to a branch of the water supply channel 22. After the water sample extracted by the sampling component 2 enters the testing pool 41 and is allowed to settle and stabilize, the multi-parameter sensing unit 42 completes the detection of various water quality parameters. A drainage channel 43 is set at the bottom of the testing pool 41. After the water sample is tested, it can be naturally discharged back to the external water body through the drainage channel 43 to avoid cross-contamination caused by long-term accumulation of water sample. The signal output terminal of the multi-parameter sensing unit 42 is connected to the control transmission unit 6 to realize the real-time acquisition and transmission of water quality data.

[0024] The self-cleaning component 5 is deployed at key nodes in the sampling and detection pathway. It consists of a cleaning medium supply unit 51 and a spray purging unit 52. The cleaning medium supply unit 51 is housed inside the protective housing 7 and integrates the cleaning medium storage and delivery power structure. It can output clean water and high-pressure airflow. The spray purging unit 52 is deployed at the water inlet of the lifting sampling head 21, the inner wall of the water delivery passage 22, and the detection surface of the multi-parameter sensing unit 42. Each spray point is connected to the cleaning medium supply unit 51 through an independent pipeline. When the cleaning program is triggered, the cleaning medium is sprayed directionally onto the surface to be cleaned through the spray purging unit 52, achieving in-situ comprehensive cleaning of the sampling port, the inner wall of the pipeline, and the sensing element.

[0025] The control and transmission unit 6 is located inside the protective housing 7 and is composed of a data acquisition module 61, a processing module 62, and a wireless transmission module 63. The data acquisition module 61 is electrically connected to the signal output terminals of the flow sensing unit 32 and the multi-parameter sensing unit 42, respectively, to synchronously acquire analog signals of hydraulic parameters and water quality parameters, and convert them into digital signals for transmission to the processing module 62. The processing module 62 serves as the logic control core of the device. On the one hand, it verifies, preprocesses, and stores the acquired data locally. On the other hand, it controls the lifting and lowering of the sampling component 2, the start and stop of sampling, and the operating sequence of the self-cleaning component 5 according to the preset operating logic. The wireless transmission module 63 is connected to the water conservancy information management and control network, which can upload the preprocessed detection data to the remote management and control platform. At the same time, it can receive parameter adjustment, start and stop control, and other instructions issued by the platform to realize remote management and control of the device.

[0026] Power supply unit 8 can adopt mains power access or new energy power supply mode according to the deployment scenario, and is electrically connected to all electrical components in the device to provide stable working power for each component and ensure long-term continuous operation of the device.

[0027] The working principle of the water quality testing device for this water conservancy informatization project will be explained in detail below.

[0028] like Figure 1-3 As shown, after the device is set up and fixed, the power supply unit 8 supplies working power to all components of the device. The control and transmission unit 6 starts the detection process according to the preset program. First, the drive component 23 drives the lifting sampling head 21 to move to the set sampling depth. The sampling component 2 extracts natural water samples. The water samples are stably transported along the water conveyance path 22. When the water samples flow through the flow measurement cavity 31, the flow sensing unit 32 collects the hydraulic parameters such as the flow rate and velocity of the water in real time and transmits the detection signals to the data acquisition module 61. Then, the water samples enter the detection pool 41 through the diversion branch. After the water samples stabilize, the multi-parameter sensing unit 42 detects various water quality parameters of the water samples and transmits the detection signals synchronously to the data acquisition module 61, thereby realizing the synchronous acquisition of hydraulic parameters and water quality parameters.

[0029] The data acquisition module 61 converts and processes the two types of parameter signals it collects and then transmits them to the processing module 62. After the processing module 62 completes the validity verification, standardization preprocessing and local storage of the data, it uploads it to the water conservancy information management and control platform through the wireless transmission module 63. At the same time, the processing module 62 can receive control commands issued by the platform to adjust operating parameters such as sampling depth, detection cycle and cleaning cycle, so as to realize remote management and control.

[0030] When the device operates continuously for a preset cleaning cycle, or when abnormal fluctuations in the detection data trigger the cleaning logic, the processing module 62 automatically starts the self-cleaning program: the cleaning medium supply unit 51 outputs cleaning medium and high-pressure airflow, which are directed to the sampling head inlet, the inner wall of the water supply passage, and the surface of the sensing element by the spray and purging units 52 at each point, washing away the attached mud, algae and other water body attachments. The cleaned wastewater is naturally discharged back to the external water body through the drainage passage 43, completing the in-situ cleaning and maintenance, ensuring the smooth flow of the detection passage and the stability of the detection accuracy. The water sample retained after a single test is also discharged through the drainage passage to avoid water sample accumulation affecting the accuracy of the next test result.

[0031] The present invention will be further described in detail below with reference to embodiments:

[0032] Example 1: This example is a water quality testing device in a fixed river monitoring scenario. The mounting frame 1 is installed on the water-facing side of the river embankment through the pre-embedded anchoring structure at the bottom. The lower working area is completely submerged in the river water. The protective shell 7 is higher than the normal water level of the river to prevent water from entering the electrical components during the flood season.

[0033] During operation, the drive unit 23 adjusts the depth of the lifting sampling head 21 in real time according to the river water level monitoring data, so that the sampling head is always in the effective sampling layer below the water surface, avoiding interference from surface floating objects and bottom sediments with the sampling quality. The water sample enters the water conveyance channel 22 through the lifting sampling head 21, first flows through the flow measurement cavity 31 to complete the detection of hydraulic parameters such as flow rate and flow velocity, and then is diverted into the detection pool 41 to complete the detection of various water quality parameters. The two types of data are simultaneously packaged and verified by the control and transmission unit 6 and then uploaded to the river water conservancy information management and control platform.

[0034] When the device operates continuously for a preset cleaning cycle, the processing module 62 automatically triggers the self-cleaning program. The cleaning medium supply unit 51 alternately delivers clean water and high-pressure airflow. The spray purging unit 52 washes and purifies the sampling port, the inner wall of the pipeline, and the surface of the sensor to remove attached mud and plankton. The wastewater generated during cleaning is discharged back into the river through the drainage channel 43. This embodiment is suitable for river main stream monitoring stations that operate year-round and can realize long-term synchronous unattended monitoring of flow and water quality.

[0035] Example 2: This example is a water quality testing device for a mobile monitoring scenario in irrigation canals. The mounting frame 1 is detachably fixed to the monitoring point on the side wall of the canal through an adjustable clamp structure, and the deployment location can be flexibly moved according to the irrigation cycle and rotation irrigation plan.

[0036] The lifting sampling head 21 of sampling component 2 is adapted to the shallow water depth of the channel. It is adjusted to the water level in the middle and lower part of the channel to carry out sampling, avoiding the suction of silt from the bottom of the channel and causing pipeline blockage. The flow detection component 3 detects the irrigation water flow in the channel in real time, and the water quality detection component 4 detects various water quality indicators of the irrigation water body simultaneously. Both types of data are transmitted to the irrigation district information management system simultaneously to provide synchronous data support for irrigation water quantity scheduling and irrigation water quality control.

[0037] The self-cleaning component 5 triggers a short-term cleaning program after each sampling and testing, using clean water from the channel to rinse the sampling head and the testing pool, preventing siltation and blockage in the channel. It does not require additional storage of cleaning media, is suitable for the characteristics of decentralized monitoring in irrigation areas, and is adapted to the seasonal operation of irrigation areas. It is easy to install and disassemble and can flexibly cover multiple channel monitoring points.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A water quality testing device for water conservancy information-based water conservancy projects, characterized in that, It includes a mounting frame (1), a sampling component (2), a flow detection component (3), a water quality detection component (4), a control and transmission unit (6), and a self-cleaning component (5); The sampling component (2), flow detection component (3) and water quality detection component (4) are all integrated on the mounting frame (1). The self-cleaning component (5) is correspondingly set at the detection path of the sampling component (2) and the water quality detection component (4). The flow detection component (3), water quality detection component (4) and self-cleaning component (5) are all electrically connected to the control transmission unit (6). The control transmission unit (6) is connected to the water conservancy information management and control network.

2. The water quality testing device for water conservancy information-based water conservancy projects according to claim 1, characterized in that, The sampling component (2) includes a lifting sampling head (21), a water delivery passage (22), and a driving component (23). The lifting sampling head (21) is located at the lower part of the mounting frame (1). The driving component (23) is connected to the lifting sampling head (21) to adjust the sampling depth. The water delivery passage (22) connects the lifting sampling head (21) with the flow detection component (3) and the water quality detection component (4).

3. The water quality testing device for water conservancy information-based water conservancy projects according to claim 1, characterized in that, The flow detection component (3) includes a flow measuring cavity (31) and a flow sensing unit (32). The flow measuring cavity (31) is connected in series in the water conveyance passage (22) of the sampling component (2). The flow sensing unit (32) is embedded in the inner wall of the flow measuring cavity (31), and the detection surface of the flow sensing unit (32) is adapted to the water flow direction.

4. The water quality testing device for water conservancy information-based water conservancy projects according to claim 1, characterized in that, The water quality testing component (4) includes a testing pool (41) and a multi-parameter sensing unit (42). The testing pool (41) is connected to the water supply passage (22) of the sampling component (2). The multi-parameter sensing unit (42) is inserted inside the testing pool (41). The testing pool (41) is provided with a drainage passage (43) to communicate with the external water body.

5. The water quality testing device for water conservancy information-based water conservancy projects according to claim 1, characterized in that, The self-cleaning component (5) includes a cleaning medium supply unit (51) and a spray purging unit (52). The spray purging unit (52) is respectively disposed on the sampling end of the sampling component (2) and the sensing element surface of the water quality detection component (4). The cleaning medium supply unit (51) is connected to the spray purging unit (52) through a pipeline.

6. The water quality testing device for water conservancy information-based water conservancy projects according to claim 1, characterized in that, The control transmission unit (6) includes a data acquisition module (61), a processing module (62) and a wireless transmission module (63). The data acquisition module (61) is connected to the signal output terminals of the flow detection component (3) and the water quality detection component (4) respectively. The processing module (62) is connected to the data acquisition module (61), the self-cleaning component (5) and the wireless transmission module (63) respectively. The wireless transmission module (63) communicates bidirectionally with the water conservancy information management and control platform.

7. The water quality testing device for water conservancy information-based water conservancy projects according to claim 1, characterized in that, The upper part of the mounting frame (1) is provided with a protective shell (7), and the control parts of the control transmission unit (6) and the self-cleaning component (5) are both housed inside the protective shell (7). The lower part of the mounting frame (1) is provided with a fixing structure for connecting with water conservancy engineering structures.

8. The water quality testing device for water conservancy information-based water conservancy projects according to claim 1, characterized in that, It also includes a power supply unit (8), which is electrically connected to the control transmission unit (6), the sampling component (2), the flow detection component (3), the water quality detection component (4), and the self-cleaning component (5) to provide working power to each component.

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