Urban pipe network water quality detection control device

Abstract

The utility model discloses an urban pipe network water quality detection control device, and belongs to the technical field of pipe network water quality detection. The urban pipe network water quality detection control device comprises a water supply pipeline, a sampling pipeline, a water quality detector and a controller, the sampling pipeline is connected with the water supply pipeline, and the water quality detector is arranged on the sampling pipeline and is in communication connection with the controller; a pressure reducing valve and a flow limiting valve are further arranged on the sampling pipeline and located in front of the water quality detector, a drainage pipeline is further arranged on the water supply pipeline, and an electric valve in communication connection with the controller is arranged on the drainage pipeline. The pressure reducing valve and the flow limiting valve are respectively used for controlling the water pressure and the flow velocity of the sampling pipeline, so that the water quality detection error increase caused by overhigh water pressure and flow velocity is avoided, and the stability and the accuracy of the water quality detection result are ensured; meanwhile, by means of the drainage pipeline and the electric valve on the water supply pipeline, unqualified tap water can be discharged in time when the water quality problem occurs, and the water use safety of residents is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to a water quality detection technology, and more specifically, to a water quality detection control device for an urban pipe network. Background Art

[0002] Water quality testing in urban pipe networks is a crucial step in ensuring the safety and quality of urban water supplies. With the acceleration of urbanization, water supply systems face multiple challenges, including source pollution, aging pipe networks, and imbalances between supply and demand. Therefore, establishing a scientific and systematic water quality testing system is crucial.

[0003] In recent years, with the development of science and technology, urban pipe network water quality detection technology has been continuously innovated and improved, mainly including the application of smart sensors and Internet of Things technology, using smart sensors to monitor water quality parameters in real time, and transmitting data to the central database through Internet of Things technology to achieve centralized management and analysis.

[0004] On the one hand, data collected from water quality testing needs to be promptly fed back to water supply management departments to help them make informed decisions. On the other hand, big data analysis can be used to predict water quality trends, optimize water supply scheduling, and reduce pollution risks. This will enhance the social benefits and environmental oversight of urban water quality monitoring.

[0005] When water quality problems arise in urban pipe networks, the water supply pipelines continue to supply water to users. By the time pipe network operators observe the water quality issues and close the pipe valves, substandard tap water has already been delivered to users, posing a water quality safety risk. Furthermore, the high water pressure and high flow rate in urban pipe networks significantly impact the stability of water quality test results, leading to unstable test results.

[0006] Chinese patent number ZL201420375717.X discloses an "intermittent drinking water network automatic water quality testing device." The device comprises a water supply pump and water supply pipeline for supplying water to a residential area, as well as a testing water inlet pipeline, a first testing branch pipeline, a second testing branch pipeline, a third testing branch pipeline, and a drainage pipeline. The first, second, and third testing branch pipelines are connected in parallel. The testing water inlet pipeline is sequentially installed with a Y-type filter and an electric regulating valve. The first testing branch pipeline is installed with a pH detector, the second testing branch pipeline is installed with a residual chlorine detector, and the third testing branch pipeline is installed with a turbidity detector. Electric drain valves are installed between the first, second, and third testing branch pipelines and the drainage pipeline. This patent application describes a pipeline extending from the water supply main for water quality testing, which is beneficial for improving the stability of water quality test results. However, this solution can only provide warnings through alarms and other means when water quality problems occur. During this period, water supply continues, making it impossible to promptly shut off the substandard water source, thus posing a risk to water quality safety. Summary of the Invention

[0007] 1. Technical problems to be solved by the utility model

[0008] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a water quality detection control device for an urban pipe network. By adopting the technical solution of the present invention, a pressure reducing valve and a flow limiting valve are respectively used to control the water pressure and flow rate of a sampling pipe, thereby avoiding an increase in water quality detection error caused by excessive water pressure and flow rate, and ensuring the stability and accuracy of the water quality detection results. At the same time, by utilizing the drainage pipe and the electric valve on the water supply pipe, unqualified tap water can be discharged in a timely manner when water quality problems occur, thereby effectively ensuring the water safety of residents.

[0009] 2. Technical solution

[0010] In order to achieve the above-mentioned purpose, the technical solution provided by the present utility model is:

[0011] The utility model discloses a water quality detection and control device for an urban pipe network, comprising a water supply pipe, a sampling pipe, a water quality detector and a controller, wherein the sampling pipe is connected to the water supply pipe, the water quality detector is arranged on the sampling pipe and is communicatively connected to the controller; a pressure reducing valve and a flow limiting valve are further provided on the sampling pipe before the water quality detector, the water supply pipe is further provided with a drainage pipe, and the drainage pipe is provided with an electric valve communicatively connected to the controller.

[0012] Furthermore, the pressure reducing valve has a pressure transmitter communicatively connected to the controller.

[0013] Furthermore, the pressure transmitter, water quality detector and electric valve are electrically connected to the controller through wires respectively.

[0014] Furthermore, the sampling pipe has a connecting section and a detection section, the connecting section is connected to the water supply pipe perpendicular to the axis of the water supply pipe, and the detection section is arranged along the length direction of the water supply pipe.

[0015] Furthermore, a three-way switching valve is installed at the water outlet of the sampling pipe, one water outlet end of the three-way switching valve is used to be connected to the water tank, and the other water outlet end is used to be connected to the drain.

[0016] Furthermore, it also includes a wireless data transmission module, which is electrically connected to the controller.

[0017] Furthermore, it also includes an audible and visual alarm, which is electrically connected to the controller.

[0018] 3. Beneficial effects

[0019] Compared with the existing known technologies, the technical solution provided by the present invention has the following beneficial effects:

[0020] (1) The utility model provides a water quality detection and control device for an urban pipe network, which includes a water supply pipe, a sampling pipe, a water quality detector and a controller. The sampling pipe is connected to the water supply pipe, and the water quality detector is arranged on the sampling pipe and is in communication connection with the controller. A pressure reducing valve and a flow limiting valve are provided on the sampling pipe before the water quality detector. A drainage pipe is also provided on the water supply pipe, and an electric valve is provided on the drainage pipe that is in communication connection with the controller. The pressure reducing valve and the flow limiting valve are respectively used to control the water pressure and flow rate of the sampling pipe, thereby avoiding an increase in water quality detection error caused by excessive water pressure and flow rate, increasing the credibility of the detection result of the water quality detector, and ensuring the stability and accuracy of the water quality detection result. At the same time, the drainage pipe and the electric valve on the water supply pipe can be used to discharge unqualified tap water in a timely manner when water quality problems occur, thereby avoiding the supply of unqualified tap water to users and effectively ensuring the water safety of residents.

[0021] (2) The utility model is a water quality detection and control device for a city pipe network, wherein the pressure reducing valve has a pressure transmitter connected to the controller for communication, and can feed back the sampled water pressure signal to the controller in real time. The controller determines whether there is any abnormality in the water inflow of the water supply pipe network based on the sampled water pressure signal, and promptly eliminates the abnormality in water quality data caused by the water supply problem of the pipe network, thereby ensuring the validity of the detection data of the water quality detector;

[0022] (3) The utility model provides a water quality detection and control device for an urban pipe network, wherein the sampling pipe has a connecting section and a detection section. The connecting section is connected to the water supply pipe perpendicular to the axis of the water supply pipe, and the detection section is arranged along the length direction of the water supply pipe, which is convenient for installation and fixation using the water supply pipe, making the structure of the water quality detection and control device simple and compact.

[0023] (4) The utility model is a water quality detection and control device for a city pipe network, in which a three-way switching valve is installed at the water outlet end of the sampling pipe. One water outlet end of the three-way switching valve is used to connect to a water tank, and the other water outlet end is used to connect to a drain. The three-way switching valve can be used for convenient switching. If the water quality detection and control device is installed in a place equipped with a water tank to detect water quality, the three-way switching valve can be switched to the water outlet pipe connected to the water tank, so that the sampled water returns to the water tank, thereby achieving a water-saving effect;

[0024] (5) The utility model provides a water quality detection and control device for an urban pipe network, which also includes a wireless data transmission module and an audible and visual alarm. The water quality data can be transmitted to an external water quality monitoring platform through the wireless data transmission module, which is convenient for remote monitoring and management. The audible and visual alarm can remind the pipe network operation and maintenance staff to pay attention when water quality problems occur, so as to facilitate timely manual intervention and reduce water resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural principle diagram of a water quality detection and control device for an urban pipe network according to the present utility model.

[0026] Explanation of the numbers in the schematic diagram:

[0027] 1. Water supply pipe; 2. Sampling pipe; 3. Pressure reducing valve; 4. Pressure transmitter; 5. Flow limiting valve; 6. Water quality detector; 7. Controller; 8. Wireless data transmission module; 9. Sound and light alarm; 10. Drain pipe; 11. Electric valve; 12. Three-way switching valve; 13. Water tank. DETAILED DESCRIPTION

[0028] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0029] [Example]

[0030] Combine Figure 1 As shown, a water quality detection and control device for an urban pipe network in this embodiment includes a water supply pipe 1, a sampling pipe 2, a water quality detector 6 and a controller 7. The water supply pipe 1 is a water pipe that supplies water to users. The sampling pipe 2 is connected to the water supply pipe 1 to form a sampling and detection branch on the water supply pipe 1. The water quality detector 6 is arranged on the sampling pipe 2 and is communicated with the controller 7. The water quality detector 6 is used to detect water flowing through the sampling pipe 2. The water quality detector 6 mainly detects parameters such as residual chlorine, turbidity, water temperature and pH value, which can be specifically achieved through existing detection sensors, such as residual chlorine sensors, turbidity sensors, temperature sensors and pH sensors. When the water pressure and flow rate in a city water supply network are high, they significantly impact the stability of water quality test results. In this embodiment, a pressure reducing valve 3 and a flow limiting valve 5 are provided on the sampling pipe 2 before the water quality detector 6. The pressure reducing valve 3 controls the water pressure in the sampling pipe 2, and the flow limiting valve 5 controls the water flow rate in the sampling pipe 2. This prevents water quality test errors caused by excessive water pressure and flow rate, ensures the stability and accuracy of water quality test results, and increases the data reliability of the water quality detector 6. The water supply pipe 1 is also provided with a drainage pipe 10. The drainage pipe 10 is equipped with an electric valve 11 that is communicatively connected to the controller 7. The opening and closing of the electric valve 11 is controlled by the controller 7. When water quality problems occur, the controller 7 can control the electric valve 11 to open and discharge unqualified tap water (for example, to a drain or reservoir) to avoid direct supply to users. This allows for timely discharge of unqualified tap water when water quality problems arise, preventing unqualified tap water from being supplied to users and effectively ensuring the safety of residents' water supply.

[0031] In addition, if Figure 1As shown, the pressure reducing valve 3 also has a pressure transmitter 4 that is in communication with the controller 7. The pressure transmitter 4 can feed back the sampled water pressure signal to the controller 7 in real time. The controller 7 determines whether there is any abnormality in the water supply network based on the sampled water pressure signal, and promptly eliminates the abnormal water quality data caused by the water supply problem in the network, thereby ensuring the validity of the test data of the water quality detector. Specifically, the pressure transmitter 4, the water quality detector 6 and the electric valve 11 are electrically connected to the controller 7 through wires. Figure 1 The “dashed line” in the figure represents the circuit connection relationship, which enables uploading of detection parameters such as pressure and water quality, and uses the controller 7 to control the opening and closing of the electric valve 11 according to the detection parameters.

[0032] In this embodiment, the sampling pipe 2 has a connecting section and a detection section, which are connected and can be arranged vertically. The connecting section is connected to the water supply pipe 1 perpendicular to the axis of the water supply pipe 1, and can be connected using a three-way joint. The detection section is arranged along the length of the water supply pipe 1, which is convenient for installation and fixation using the water supply pipe 1, making the structure of the water quality detection control device simple and compact. Figure 1 As shown, a three-way switching valve 12 is installed at the water outlet of the sampling pipe 2, and one water outlet end of the three-way switching valve 12 is used to connect to the water tank 13, and the other water outlet end is used to connect to the drain. The three-way switching valve 12 can be used for convenient switching. If the water quality detection control device is installed in a place equipped with a water tank 13 to detect water quality, the three-way switching valve can be switched to the water outlet pipe connected to the water tank, so that the sampled water returns to the water tank 13, achieving the effect of water saving. In one embodiment, the three-way switching valve 12 can be a solenoid valve and electrically connected to the controller 7. When one water outlet end of the three-way switching valve 12 is connected to the water tank 13, when the water quality detector 6 detects that the water quality is normal, the controller 7 controls the sampling pipe 2 to connect to the water tank 13. When the water quality detector 6 detects that the water quality is unqualified, the controller 7 controls the sampling pipe 2 to connect to the drain to discharge the unqualified tap water.

[0033] In addition, the urban pipe network water quality detection and control device of this embodiment also includes a wireless data transmission module 8 and an audible and visual alarm 9. The wireless data transmission module 8 is electrically connected to the controller 7, and the audible and visual alarm 9 is electrically connected to the controller 7. The water quality data can be transmitted to an external water quality monitoring platform through the wireless data transmission module 8, which is convenient for remote monitoring and management. The audible and visual alarm 9 can remind the pipe network operation and maintenance staff to pay attention when water quality problems occur, so as to facilitate timely manual intervention and reduce water resource waste.

[0034] The urban pipe network water quality detection control device of this embodiment, when in use, controls the sampling water pressure through the pressure reducing valve 3, and sets the water flow rate through the water quality detector 6 through the flow limiting valve 5. The water quality detector 6 can detect the water quality of the tap water passing through the sampling pipe 2 and then transmit the data to the controller 7. The controller 7 transmits the water quality data to the external water quality monitoring platform through the wireless data transmission module 8, and controls the electric valve 11 installed on the drainage pipe 10. When the water quality does not meet the standard, the electric valve 11 is automatically opened to drain the water, and then the sound and light alarm 9 is activated to alert the pipe network operation and maintenance staff. At this time, the pressure transmitter 4 installed after the pressure reducing valve 3 detects the water pressure drop and determines that the sampling water pressure drop is caused by the opening of the electric valve 11. After the drainage delay time reaches the set value, the controller 7 automatically closes the electric valve 11, the pressure transmitter 4 detects that the water pressure has returned to normal, and the water quality detector 6 resumes normal detection. If the water quality detection value still does not meet the standard, a second discharge treatment process is carried out until the water quality returns to normal. It can carry out continuous water quality testing and respond to water quality conditions in a timely manner. The detection sampling flow is very small, and there is little water waste.

[0035] The utility model of the urban pipe network water quality detection and control device, in terms of urban pipe network water quality sampling and control, ensures a stable operating environment for the water quality detector through optimized design, making the water quality detection data reliable; and through the automatic drainage mechanism, timely discharges unqualified tap water, playing a vital role in effectively ensuring the water safety of residents, preventing environmental pollution, and improving urban management capabilities. Specifically, the water pressure and flow rate of the sampling pipeline are controlled by a pressure reducing valve and a flow limiting valve respectively, avoiding the increase of water quality detection errors caused by excessive water pressure and flow rate, increasing the credibility of the water quality detector's detection results, and ensuring the stability and accuracy of the water quality detection results; at the same time, the drainage pipe and electric valve on the water supply pipe can be used to timely discharge unqualified tap water when water quality problems occur, avoiding the supply of unqualified tap water to users, and effectively ensuring the water safety of residents.

[0036] The above schematically describes the present invention and its embodiments, which is not intended to be limiting. The accompanying drawings illustrate only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the spirit of the present invention, uninventively designs structures and embodiments similar to this technical solution, they shall fall within the scope of protection of the present invention.

Claims

1. A water quality detection and control device for an urban pipe network, comprising a water supply pipe (1), a sampling pipe (2), a water quality detector (6) and a controller (7), wherein the sampling pipe (2) is connected to the water supply pipe (1), and the water quality detector (6) is arranged on the sampling pipe (2) and is in communication connection with the controller (7); characterized in that: A pressure reducing valve (3) and a flow limiting valve (5) are also provided on the sampling pipe (2) before the water quality detector (6); a drainage pipe (10) is also provided on the water supply pipe (1); and an electric valve (11) is provided on the drainage pipe (10) in communication with the controller (7).

2. The urban pipe network water quality detection and control device according to claim 1, characterized in that: The pressure reducing valve (3) has a pressure transmitter (4) which is in communication with a controller (7).

3. The urban pipe network water quality detection and control device according to claim 2, characterized in that: The pressure transmitter (4), the water quality detector (6) and the electric valve (11) are electrically connected to the controller (7) via wires respectively.

4. The urban pipe network water quality detection and control device according to claim 1, 2 or 3, characterized in that: The sampling pipe (2) comprises a connecting section and a detection section, wherein the connecting section is connected to the water supply pipe (1) perpendicular to the axis of the water supply pipe (1), and the detection section is arranged along the length direction of the water supply pipe (1).

5. The urban pipe network water quality detection and control device according to claim 1, 2 or 3, characterized in that: A three-way switching valve (12) is installed at the water outlet of the sampling pipe (2), one water outlet of the three-way switching valve (12) is used to be connected to a water tank (13), and the other water outlet is used to be connected to a drain.

6. The urban pipe network water quality detection and control device according to claim 1, 2 or 3, characterized in that: It also includes a wireless data transmission module (8), which is electrically connected to the controller (7).

7. The urban pipe network water quality detection and control device according to claim 1, 2 or 3, characterized in that: It also includes an audible and visual alarm (9), which is electrically connected to the controller (7).

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