Low-flow water quality monitoring device and method

Abstract

The invention provides a low-flow water quality monitoring device and method.The device comprises a pipe body and a drainage component, the drainage component comprises an inclined plate and a horizontal plate, the horizontal plate is connected to the upper end of the inclined plate, a plurality of meshes are formed in the inclined plate and the horizontal plate, the inclined plate and the horizontal plate are fixedly connected with the pipe body, and the pipe body is fixedly connected with the drainage component. The horizontal plate is arranged at the closed end of the pipe body, the inclined plate, the horizontal plate and the pipe body form a water storage cavity, and a water quality sensor is connected to the horizontal plate and located in the water storage cavity. The problem that water quality data cannot be directly collected in a low-flow environment is solved, water flow in the low-flow environment is collected through the drainage component, water quality collection is completed after the liquid level is increased, and meanwhile impurities such as suspended solids in water can be effectively separated in the water quality collection process; the water quality sensor is prevented from being interfered by impurities such as suspended solids, and the situation that water quality cannot be detected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of urban drainage, and in particular to a low-flow water quality monitoring device and method. Background Art

[0002] The urban drainage system is an important part of municipal facilities. It shoulders important functions such as urban sewage and rainwater discharge. The transformation of the community pipe network, which is the "last mile problem", has become the focus of the upgrading and transformation of the urban drainage system. In addition, the large fluctuation range of water dynamics and water quality in the community internal pipe network and the low monitoring accuracy have become important obstacles to the promotion of automated monitoring of the community internal pipe network.

[0003] Based on the above problems, this study intends to propose a dynamic monitoring plan for drainage in residential areas, develop the first set of low-flow measurement equipment and low-flow water quality detection equipment for the protection of the Yangtze River, optimize the distributed leakage detection technology of important nodes, and construct a key set of technologies for the construction and management of urban community pipe network systems, providing scientific and technological support for improving the quality and efficiency of urban drainage systems. Summary of the invention

[0004] The purpose of the present invention is to provide a low-flow water quality monitoring device and method to address the defects of the prior art. Through the present invention, the problem that water quality data cannot be directly collected in a low-flow environment can be solved. At the same time, impurities such as suspended matter in the water can be effectively separated during the collection process, thereby preventing the water quality sensor from being interfered with by impurities such as suspended matter, and avoiding the situation where water quality is not properly detected.

[0005] A first aspect of the present invention provides a low-flow water quality monitoring device, comprising a pipe body and a drainage component disposed in the pipe body; One end of the tube body is closed and the other end is open, and a drain outlet is provided at the bottom of the closed end of the tube body; The drainage component includes an inclined plate and a horizontal plate, the horizontal plate is connected to the upper end of the inclined plate, a plurality of mesh holes are provided on the inclined plate and the horizontal plate, the inclined plate and the horizontal plate are fixedly connected to the tube body, the horizontal plate is arranged at one closed end of the tube body, and the inclined plate, the horizontal plate and the tube body form a water storage cavity; The horizontal plate is connected with a water quality sensor, and the water quality sensor is located in the water storage cavity.

[0006] Preferably, the horizontal plate and the inclined plate are made of stainless steel.

[0007] Preferably, a valve is provided at the drain outlet, and a water level sensor is also provided in the water storage cavity. Both the water level sensor and the valve are electrically connected to the controller.

[0008] Preferably, the water quality sensor is connected to the horizontal plate via a connecting rope or a connecting rod so that the water quality sensor is located in the middle of the water storage cavity.

[0009] Preferably, the inclination angle of the inclined plate is 30°-60°.

[0010] A second aspect of the present invention provides a low-flow water quality monitoring method, using a low-flow water quality monitoring device as described in any one of the above items, specifically comprising: The low-flow water quality monitoring device is placed in a low-flow flow channel. When the flow rate is low, the liquid level in the pipe is low, and the water quality sensor cannot effectively measure the water quality results. At this time, the drain port is closed to allow the upstream water to gather in the water storage cavity to increase the liquid level in the water storage cavity. When the water level sensor detects that the liquid level has reached a sufficient height, the water quality sensor collects water quality data, and the controller opens the valve at the drain port to drain water. During the water storage process, the drainage component filters the impurities in the upstream water and drains it to the upper part of the inclined plate to prevent suspended impurities from entangled or wrapped around the water quality sensor and affecting the water quality measurement results.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention solves the problem that water quality data cannot be directly collected in a low-flow environment. The drainage component is used to collect water flow in a low-flow environment and increase the liquid level to complete the water quality collection.

[0012] 2. The present invention can effectively separate suspended matter and other impurities in water during the water quality collection process, thereby preventing the water quality sensor from being interfered with by the suspended matter and other impurities, and avoiding the situation where the water quality is not properly detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] In the figure: 10, pipe body; 11, drain outlet; 20, drainage component; 21, inclined plate; 22, horizontal plate; 23, mesh; 24, water quality sensor; 30, water storage cavity. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred implementation scheme of the present invention is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for exemplary descriptions and cannot be understood as limitations on this patent; in order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted; the positional relationship described in the drawings is only used for exemplary descriptions and cannot be understood as limitations on this patent.

[0016] As an embodiment of the present invention, see the attached Figure 1, this embodiment provides a low flow water quality monitoring device, including a pipe body 10 and a drainage component 20 disposed in the pipe body 10; One end of the tube body 10 is closed and the other end is open, and a drain port 11 is provided at the bottom of the closed end of the tube body 10; The drainage component 20 includes an inclined plate 21 and a horizontal plate 22, the horizontal plate 22 is connected to the upper end of the inclined plate 21, and a plurality of mesh holes 23 are provided on the inclined plate 21 and the horizontal plate 22. The inclined plate 21 and the horizontal plate 22 are fixedly connected to the pipe body 10, and the horizontal plate 21 is arranged at one closed end of the pipe body 10. The inclined plate 21, the horizontal plate 22 and the pipe body 10 form a water storage cavity 30; The horizontal plate 22 is connected to a water quality sensor 24 , and the water quality sensor 24 is located in the water storage cavity 30 .

[0017] In some preferred embodiments, in order to improve the anti-corrosion performance and extend the service life, the horizontal plate 22 and the inclined plate 21 in this embodiment are made of stainless steel.

[0018] In some preferred embodiments, in order to facilitate automatic control of the water level and automatically discharge the stored water after water quality testing, a valve is provided at the drain outlet 11 in this embodiment, and a water level sensor is also provided in the water storage chamber 30. The water level sensor and the valve are electrically connected to the controller. When collecting water quality data, the valve can be closed first to store water. When the water is stored to a certain level, the water quality sensor collects water quality data, and then the controller receives the data from the water level sensor and opens the valve at the drain outlet to discharge the collected stored water.

[0019] In other preferred embodiments, in order to facilitate the collection of water quality data, the water quality sensor 24 in this embodiment is connected to the horizontal plate 33 through a connecting rope or a connecting rod so that the water quality sensor 34 is located in the middle of the water storage cavity 30. This allows the water quality sensor to more easily detect water quality data and reduce the requirements for the water storage level.

[0020] In the embodiment of the present invention, in order to facilitate installation and connection, the inclination angle of the inclined plate 21 is 30°-60°. The inclination angle of the inclined plate 21 focuses on the water quality of the upstream water. When the upstream water flow rate is low or contains more impurities, the inclination angle can be reduced to increase the length of the inclined plate 21. In this way, the length of intercepting impurities can be increased and the interception effect can be improved.

[0021] In the specific water quality collection process, as another preferred embodiment of the present invention, this embodiment provides a low-flow water quality monitoring method, using a low-flow water quality monitoring device as described in any one of the above items, specifically including: The low-flow water quality monitoring device is placed in a low-flow flow channel. When the flow rate is low, the liquid level in the pipe body 10 is low, and the water quality sensor 24 cannot effectively measure the water quality results. At this time, the drain port 11 is closed to allow the upstream water to be collected in the water storage cavity 30, thereby increasing the liquid level in the water storage cavity 30. When the water level sensor detects that the liquid level has reached a sufficient height, the water quality sensor 24 collects water quality data, and the controller opens the valve at the drain port to drain water. During the water storage process, the drainage component 20 filters the impurities in the upstream water and drains it to the upper part of the inclined plate 21 to prevent the suspended impurities from entangled or wrapped around the water quality sensor 24 and affecting the water quality measurement results.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A low flow water quality monitoring device, characterized in that: It includes a tube body and a drainage component arranged in the tube body; One end of the tube body is closed and the other end is open, and a drain outlet is provided at the bottom of the closed end of the tube body; The drainage component includes an inclined plate and a horizontal plate, the horizontal plate is connected to the upper end of the inclined plate, a plurality of mesh holes are provided on the inclined plate and the horizontal plate, the inclined plate and the horizontal plate are fixedly connected to the tube body, the horizontal plate is arranged at one closed end of the tube body, and the inclined plate, the horizontal plate and the tube body form a water storage cavity; The horizontal plate is connected with a water quality sensor, and the water quality sensor is located in the water storage cavity.

2. A low flow water quality monitoring device according to claim 1, characterized in that: The horizontal plate and the inclined plate are made of stainless steel.

3. A low flow water quality monitoring device according to claim 1, characterized in that: A valve is provided at the drain outlet, and a water level sensor is also provided in the water storage cavity. Both the water level sensor and the valve are electrically connected to the controller.

4. A low flow water quality monitoring device according to claim 1, characterized in that: The water quality sensor is connected to the horizontal plate through a connecting rope or a connecting rod so that the water quality sensor is located in the middle of the water storage cavity.

5. A low flow water quality monitoring device according to claim 1, characterized in that: The inclination angle of the inclined plate is 30°-60°.

6. A low flow water quality monitoring method, characterized in that: A low-flow water quality monitoring device according to any one of claims 1 to 5 is used, specifically comprising: The low-flow water quality monitoring device is placed in a low-flow flow channel. When the flow rate is low, the liquid level in the pipe is low, and the water quality sensor cannot effectively measure the water quality results. At this time, the drain port is closed to allow the upstream water to gather in the water storage cavity to increase the liquid level in the water storage cavity. When the water level sensor detects that the liquid level has reached a sufficient height, the water quality sensor collects water quality data, and the controller opens the valve at the drain port to drain water. During the water storage process, the drainage component filters the impurities in the upstream water and drains it to the upper part of the inclined plate to prevent suspended impurities from entangled or wrapped around the water quality sensor and affecting the water quality measurement results.

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