Water quality PH value monitoring system

Abstract

The utility model provides a water quality PH value monitoring system. The water quality PH value monitoring system comprises a water body sampling unit, a classification detection unit, a PH value detection unit and a control transmission unit, the water body sampling unit is used for acquiring a detection sample from a target water body, and the classification detection unit is used for detecting the salinity of the detection sample in the water body sampling unit and outputting a salinity detection result to the control transmission unit; the control transmission unit controls the water body sampling unit to classify the detection samples according to the salinity detection result; the PH value detection unit is used for detecting the PH value of the classified detection sample and outputting the PH value to the control transmission unit, and the control transmission unit uploads a PH value detection result. By means of the system, the influence of salinity on the PH value sensor can be reduced, and the monitoring precision of the PH value of the water quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of water quality monitoring, in particular to a water quality pH value monitoring system. Background Art

[0002] With the acceleration of industrialization and the enhancement of environmental protection awareness, water quality monitoring has become an important part of environmental monitoring. As one of the basic parameters for evaluating water quality, accurate monitoring of pH value is of vital importance to drinking water safety, wastewater treatment, aquatic ecological protection and other aspects.

[0003] Traditional pH monitoring devices often use a pH sensor for detection. This device is more accurate when processing standard solutions, but its performance is often disturbed in an environment with changing salinity because salinity will affect the pH detection electrode, resulting in pH measurement errors. If different pH sensors are used directly for monitoring, it is impossible to determine which pH sensor's monitoring value is closer to the actual pH value, which will also cause measurement errors.

[0004] Therefore, in order to solve the above technical problems, it is urgent to propose a new technical means. Utility Model Content

[0005] In view of this, in order to reduce the influence of salinity on pH value and improve the monitoring accuracy of pH value, the utility model proposes a water quality pH value monitoring system.

[0006] The utility model provides a water quality pH value monitoring system, comprising a water body sampling unit, a classification detection unit, a pH value detection unit and a control transmission unit;

[0007] The water sampling unit is used to obtain a test sample from a target water body, and the classification detection unit is used to detect the salinity of the test sample in the water sampling unit and output the salinity detection result to the control transmission unit;

[0008] The control transmission unit controls the water sampling unit to classify the test samples according to the salinity test result;

[0009] The pH value detection unit is used to detect the pH value of the classified detection sample and output it to the control transmission unit, and the control transmission unit uploads the pH value detection result.

[0010] Further, the water sampling unit includes a water pump, a sampling container and a classification container;

[0011] The water pump is arranged in the target water body, the output port of the water pump is connected with the input port of the sampling container, the classification output port of the sampling container is connected with the classification container, there are at least two classification containers, and the classification output port of the sampling container is provided with a classification electric control valve, and the control input end of the classification electric control valve and the water pump are both connected with the control output end of the control transmission unit.

[0012] Furthermore, the sampling container is a spherical structure, and a sewage outlet is provided at the bottom of the sampling container. The center line of the sewage outlet is collinear with a vertical line passing through the center of the sphere of the sampling container. The classification output port is located at the bottom of the sampling container and surrounds the vertical line passing through the center of the sphere of the sampling container. The sewage outlet is provided with a sewage discharge electric-controlled valve, and the control input end of the sewage discharge electric-controlled valve is connected to the control output end of the control transmission unit.

[0013] Furthermore, the bottom of the classification container is an inclined structure from top to bottom, a drain outlet is provided at the inclined end of the classification container, a drain electric-controlled valve is provided at the drain outlet, and a control input end of the drain electric-controlled valve is connected to a control output end of the control transmission unit.

[0014] Further, the classification monitoring unit includes a salinity sensor and a first water level sensor;

[0015] The salinity sensor and the first water level sensor are arranged in the sampling container, and the first water level sensor is located above the salinity sensor;

[0016] The output ends of the salinity sensor and the first water level sensor are connected to the input end of the control transmission unit.

[0017] Further, the pH value detection unit includes at least a high-salinity pH value sensor and a low-salinity pH value sensor;

[0018] The high-salinity pH sensor and the low-salinity pH sensor are respectively arranged in the classification container, and the output ends of the high-salinity pH sensor and the low-salinity pH sensor are connected to the input end of the control transmission unit.

[0019] Further, it also includes a second water level sensor and a third water level sensor;

[0020] The second water level sensor and the high-salinity pH value sensor are arranged in the same classification container, and the second water level sensor is located above the high-salinity pH value sensor;

[0021] The third water level sensor and the low-salinity pH value sensor are arranged in the same classification container, and the third water level sensor is located above the low-salinity pH value sensor;

[0022] The output ends of the second water level sensor and the third water level sensor are connected to the input end of the control transmission unit.

[0023] Further, the control transmission unit includes a controller, a wireless transmission unit, a memory, a clock circuit and a positioning circuit;

[0024] The controller is in communication connection with the memory, the clock circuit and the positioning circuit, and the controller uploads the pH value detection result through a wireless transmission unit.

[0025] The beneficial effects of the utility model are as follows: the utility model can classify the test samples according to the salinity by setting the salinity sensor, so that the test samples are transported to the classification container of the sample salinity for pH value detection, and the pH value sensor corresponding to the salinity is used to detect the test samples, which can reduce the influence of salinity on the pH value sensor, thereby improving the detection accuracy of the pH value, and transporting the test samples to the corresponding classification container for detection, instead of setting a variety of special pH value sensors in the sampling container at the same time, can avoid that different salinity test samples affect the detection accuracy of non-corresponding special pH value sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0027] Figure 1 This is a schematic diagram of the water quality pH value monitoring system of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the monitoring system of the utility model;

[0029] Figure markings: 1-sampling container, 2-classification container, 3-salinity sensor, 4-first water level sensor, 5-sewage electric control valve, 6-classification electric control valve, 7-high salinity pH value sensor, 8-second water level sensor, 9-low salinity pH value sensor, 10-third water level sensor, 11-drainage electric control valve. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] The utility model provides a water quality pH value monitoring system, including a water sampling unit, a classification detection unit, a pH value detection unit and a control transmission unit. Figure 1 As shown;

[0032] The water sampling unit is used to obtain a test sample from a target water body, and the classification detection unit is used to detect the salinity of the test sample in the water sampling unit and output the salinity detection result to the control transmission unit;

[0033] The control transmission unit controls the water sampling unit to classify the test samples according to the salinity test result;

[0034] The pH value detection unit is used to detect the pH value of the classified test sample and output it to the control transmission unit, and the control transmission unit uploads the pH value detection result. Through the above monitoring system, the influence of salinity on the pH value of the water body can be reduced, thereby improving the detection accuracy of the pH value of the test sample.

[0035] In this embodiment, the water sampling unit includes a water pump (not shown in the figure), a sampling container 1 and a classification container 2. Figure 2 As shown;

[0036] The water pump is arranged in the target water body, the output port of the water pump is connected with the input port of the sampling container 1, the classification output port of the sampling container 1 is connected with the classification container 2, there are at least two classification containers 2, the classification output port of the sampling container 1 is provided with a classification electric control valve 6, the control input end of the classification electric control valve 6 and the water pump are both connected with the control output end of the control transmission unit;

[0037] The number of the classification containers 2 is determined according to the accuracy of the salinity classification. If the salinity classification accuracy is high and it is divided into four types, then the number of classification containers 2 is four. If the salinity classification accuracy is low, the number of classification containers 2 is at least two.

[0038] The electric control valve in the present application includes a solenoid valve, an electric valve, etc., and a solenoid valve is preferably used. The above arrangement can transport water samples of different salinities to different classification containers for pH value detection.

[0039] In this embodiment, the sampling container 1 is a spherical structure, and a sewage outlet is provided at the bottom of the sampling container 1. The center line of the sewage outlet is collinear with a vertical line passing through the center of the sphere of the sampling container 1. Figure 2 As shown, the classification output port is located at the bottom of the sampling container 1 and surrounds the vertical line passing through the center of the sphere of the sampling container 1. The classification output port is higher than the sewage outlet, which can avoid the water impurities accumulated at the bottom of the sampling container 1 from being transported to the classification container 2. The sewage outlet is provided with a sewage discharge electric control valve 5, and the control input end of the sewage discharge electric control valve 5 is connected to the control output end of the control transmission unit. The sampling container is set to be spherical, which is convenient for setting multiple classification output ports on the same horizontal circumference, and the input ports of each classification container can be made equal in height, so as to avoid the different impurities contained in water bodies at different heights, thereby affecting the pH value detection of the water body;

[0040] A sewage outlet is arranged at the bottom of the sphere, which can not only discharge the impurities (mud) extracted by the water pump, but also discharge the water samples that have not been transported to the classification container.

[0041] In this embodiment, the present application does not limit the structure of the classification container 2, but only limits the bottom of the classification container 2, which is preferably rectangular. The bottom (inner side) of the classification container 2 is an inclined structure from top to bottom, and a drain port is provided at the inclined end of the classification container 2. The inclined end refers to the lower end of the inclined structure. Figure 2 As shown, the drain outlet is provided with a drain electric control valve 11, and the control input end of the drain electric control valve 11 is connected to the control output end of the control transmission unit. The above structure facilitates the discharge of the test samples in the classification container.

[0042] In this embodiment, the classification monitoring unit includes a salinity sensor 3 and a first water level sensor 4;

[0043] The salinity sensor 3 and the first water level sensor 4 are arranged in the sampling container 1, and the first water level sensor 4 is located above the salinity sensor 3;

[0044] The output ends of the salinity sensor 3 and the first water level sensor 4 are connected to the input end of the control transmission unit;

[0045] Since the water sample may splash onto the salinity sensor 3 when entering the sampling container 1, causing the salinity sensor 3 to detect salinity, the salinity detected at this time is inaccurate, and a water level sensor is provided, and the height of the water level sensor is higher than the salinity sensor 3. If the water level sensor continuously detects the water level and it is within a reasonable range, it can be determined that the salinity sensor 3 is submerged by the water sample. At this time, the data detected by the salinity sensor 3 can be credible data, and the data detected after the salinity sensor 3 is submerged by the water sample is transmitted to the control transmission unit, and the control transmission unit opens the corresponding classification electric control valve 6 according to the salinity. Through the above method, the accuracy of salinity detection can be improved.

[0046] In this embodiment, since the salinity (electrolyte content) of the water sample has a great interference on the monitoring of the pH value of the water sample, the use of a special sensor to monitor the pH value of the water sample can reduce the influence of salinity on the pH value; in this embodiment, the pH value detection unit is preferably two, including a high-salinity pH value sensor 7 and a low-salinity pH value sensor 9; if the salinity is to be distinguished more accurately, more and more accurate pH value sensors can be used; in order to improve the pH detection accuracy, reduce costs and simplify the structure, the present application preferably sets two pH value sensors;

[0047] The high-salinity pH sensor 7 and the low-salinity pH sensor 9 are respectively arranged in the classification container 2, preferably arranged on the side wall away from the water inlet of the classification container 2, so as to avoid the impact of the detected water sample on the sensor, thereby causing damage, and the output ends of the high-salinity pH sensor 7 and the low-salinity pH sensor 9 are connected to the input end of the control transmission unit;

[0048] When the water sample in the sampling container 1 is detected as high salinity, the control transmission unit opens the classification electric control valve 6 of the classification container 2 provided with the high salinity pH value sensor 7; if the water sample is low salinity, the operation method is the same as before;

[0049] Among them, high salinity and low salinity are relative. If the turbidity of the water body is different, the salinity will also be affected. Therefore, the boundary standard between high salinity and low salinity is preferably 0.5%. Salinity greater than or equal to 0.5% is high salinity, and less than 0.5% is low salinity. However, the specific boundary standard is determined according to demand or actual conditions. Through the above settings, the accuracy and reliability of the detection data can be improved, and the use of a dedicated pH sensor for detection can also respond quickly, thereby improving the work efficiency of water quality pH monitoring.

[0050] In this embodiment, a second water level sensor 8 and a third water level sensor 10 are also included;

[0051] The second water level sensor 8 and the high-salinity pH value sensor 7 are arranged in the same classification container 2, preferably arranged on the side wall away from the water inlet of the classification container 2, and the second water level sensor 8 is located above the high-salinity pH value sensor 7;

[0052] The third water level sensor 10 and the low-salinity pH value sensor 9 are arranged in the same classification container 2, preferably arranged on the side wall away from the water inlet of the classification container 2, and the third water level sensor 10 is located above the low-salinity pH value sensor 9;

[0053] The output ends of the second water level sensor 8 and the third water level sensor 10 are connected to the input end of the control transmission unit; the second water level sensor 8 and the third water level sensor 10 have similar functions to the first water level sensor 4 and can improve the accuracy of the output data of the PH sensor.

[0054] In this embodiment, the control transmission unit includes a controller, a wireless transmission unit, a memory, a clock circuit and a positioning circuit;

[0055] The controller is in communication with the memory, the clock circuit and the positioning circuit, and the controller uploads the pH value detection result to an external monitoring device through a wireless transmission unit;

[0056] The controller adopts an existing single-chip microcomputer, the clock circuit is a GPS timing circuit, the positioning circuit is a GPS positioning circuit or a Beidou positioning circuit, and the GPS timing circuit, GPS positioning circuit and Beidou positioning circuit are existing technologies and are not described in detail here; the wireless transmission unit includes but is not limited to a 4G communication module, a 5G communication module and a Zigbee module, etc.;

[0057] The clock circuit can record the detection time of each sensor, and the positioning circuit can accurately determine the location of the monitoring system.

[0058] During actual use of the present application, its spherical sampling container can be supported by an existing supporting device. When in use, water samples are first drawn into the sampling container by a water pump, and the first water level sensor in the sampling container performs detection. When the water sample floods the salinity sensor, the detection data of the salinity sensor is obtained and transmitted to the control transmission unit. The control transmission unit opens the corresponding classification electric control valve according to the detected salinity. Assuming that the currently detected salinity is high salinity, the corresponding electric control valve is opened to allow the water sample to flow into the classification container provided with a high salinity pH sensor. The second water level sensor performs water level detection. When the water sample floods the high salinity pH sensor, the control transmission unit obtains the detection value of the high salinity pH sensor, and then the control transmission unit controls the sewage electric control valve and the drainage electric control valve to open, discharge the water sample and impurities, and transmits the pH detection value of the water sample to the external monitoring device through the wireless transmission unit.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A water quality pH value monitoring system, characterized in that: It includes a water sampling unit, a classification detection unit, a pH value detection unit and a control transmission unit; The water sampling unit is used to obtain a test sample from a target water body, and the classification detection unit is used to detect the salinity of the test sample in the water sampling unit and output the salinity detection result to the control transmission unit; The control transmission unit controls the water sampling unit to classify the test samples according to the salinity test result; The pH value detection unit is used to detect the pH value of the classified detection sample and output it to the control transmission unit, and the control transmission unit uploads the pH value detection result.

2. The water quality pH value monitoring system according to claim 1, characterized in that: The water sampling unit includes a water pump, a sampling container and a classification container; The water pump is arranged in the target water body, the output port of the water pump is connected with the input port of the sampling container, the classification output port of the sampling container is connected with the classification container, there are at least two classification containers, and the classification output port of the sampling container is provided with a classification electric control valve, and the control input end of the classification electric control valve and the water pump are both connected with the control output end of the control transmission unit.

3. The water quality pH value monitoring system according to claim 2, characterized in that: The sampling container is a spherical structure, and a sewage outlet is provided at the bottom of the sampling container. The center line of the sewage outlet is collinear with a vertical line passing through the center of the sphere of the sampling container. The classification output port is located at the bottom of the sampling container and surrounds the vertical line passing through the center of the sphere of the sampling container. The sewage outlet is provided with a sewage discharge electric control valve, and the control input end of the sewage discharge electric control valve is connected to the control output end of the control transmission unit.

4. The water quality pH value monitoring system according to claim 2, characterized in that: The bottom of the classification container is an inclined structure from top to bottom. A drain port is provided at the inclined end of the classification container. A drain electric control valve is provided at the drain port. The control input end of the drain electric control valve is connected to the control output end of the control transmission unit.

5. The water quality pH value monitoring system according to claim 3, characterized in that: The classification detection unit includes a salinity sensor and a first water level sensor; The salinity sensor and the first water level sensor are arranged in the sampling container, and the first water level sensor is located above the salinity sensor; The output ends of the salinity sensor and the first water level sensor are connected to the input end of the control transmission unit.

6. The water quality pH value monitoring system according to claim 4, characterized in that: The pH value detection unit includes at least a high-salinity pH value sensor and a low-salinity pH value sensor; The high-salinity pH sensor and the low-salinity pH sensor are respectively arranged in the classification container, and the output ends of the high-salinity pH sensor and the low-salinity pH sensor are connected to the input end of the control transmission unit.

7. The water quality pH value monitoring system according to claim 6, characterized in that: Also included is a second water level sensor and a third water level sensor; The second water level sensor and the high-salinity pH value sensor are arranged in the same classification container, and the second water level sensor is located above the high-salinity pH value sensor; The third water level sensor and the low-salinity pH value sensor are arranged in the same classification container, and the third water level sensor is located above the low-salinity pH value sensor; The output ends of the second water level sensor and the third water level sensor are connected to the input end of the control transmission unit.

8. The water quality pH value monitoring system according to any one of claims 5 or 7, characterized in that: The control transmission unit includes a controller, a wireless transmission unit, a memory, a clock circuit and a positioning circuit; The controller is in communication connection with the memory, the clock circuit and the positioning circuit, and the controller uploads the pH value detection result through a wireless transmission unit.

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