CN106568808A - pH combined electrode device capable of realizing Zigbee data transmission and self washing and maintenance - Google Patents

Abstract

The invention relates to a PH composite electrode device capable of automatic cleaning and maintenance for data transmission by zigbee, including a power supply module, a central control module, a PH value collection module, a wireless communication module, an electrode maintenance module and a clear water collection module. The electrode maintenance module includes a KCL replenishment liquid container 21 with an electromagnetic valve, a turbidity sensor 7, a KCL solution pool 8, and a sewage pump 9. The turbidity sensor 7 is used to detect the degree of contamination of the standard sample liquid in the KCL solution pool 8, and the center When the turbidity reaches the threshold, the control module controls the sewage pump 9 to work, discharges the waste liquid in the KCL solution pool 8, and opens the electromagnetic valve at the bottom of the KCL replenishment liquid container 21 above the KCL solution pool 8 to release the KCL replenishment liquid; the power supply module includes Solar photovoltaic panel 2 and storage battery 4 . The invention can meet the requirement of long-term monitoring of sensor nodes in the marine environment.

Description

Zigbee transmits data and can automatically clean and maintain the PH composite electrode device

technical field

The invention relates to the field of monitoring the pH value of seawater, in particular to the cleaning and maintenance of the pH composite electrode in the device.

Background technique

The resources contained in the ocean are far greater than those on land, such as biological species resources, mineral resources, petroleum resources, and nuclear resources. It can be said that marine development technology determines the future economic trend and situation of a country. Changes in the marine environment will have an important impact on the development of marine resources. The monitoring of seawater quality can enable humans to predict changes in the marine environment, thereby reducing the risk of developing marine resources.

PH value is one of the most important indicators in the process of seawater quality monitoring. At the same time, seawater quality monitoring is a long-term continuous process. If the existing pH composite electrode is soaked in seawater for a long time, the sensitivity will decrease, which will affect the pH value of seawater. Accuracy of data collection. The existing pH composite electrodes need to be cleaned, maintained and other operations after use, so the above pH composite electrodes cannot continuously monitor sea water quality for a long time. At the same time, the pH information collected by the traditional pH composite electrode needs to be transmitted to the host through a wired method, and the device needs to be powered through a wired method, which reduces the flexibility of use.

Therefore, a wireless PH composite electrode device that utilizes solar power supply technology and has automatic cleaning and maintenance functions is very important for the monitoring of ocean water quality.

Description of drawings

Figure 1 is a cross-sectional view of the sensor device box

Figure 2 is a detailed view of the cleaning and maintenance of the pH composite electrode

Figure 3 is a block diagram of the device

Figure 4 is a flowchart of the whole process

1. Robot arm; 2. Solar photovoltaic panel; 3. Zigbee module; 4. Battery; 5. Central control module; 6. Foam; 7. Turbidity sensor; 8. KCL standard sample pool; 9, 10, 11, 14, 15, 19, all are water pumps (water pipes are not drawn); 12, liquid pool to be tested 13, liquid level gauge; 16, heat-conducting silica gel; 17, seawater storage pool; 18, clear water storage pool; 20, made of metal condensing plate; 21. KCL replenishment liquid container with electromagnetic valve; 22. PH composite electrode;

Contents of the invention

The purpose of the present invention is to provide a PH composite electrode device to meet the long-term monitoring needs of marine environmental water quality. Technical scheme of the present invention is as follows:

A PH composite electrode device that transmits data by zigbee and can be automatically cleaned and maintained, including a power supply module, a central control module, a PH value acquisition module, a wireless communication module, an electrode maintenance module and a clear water acquisition module, wherein,

The PH value acquisition module includes a mechanical arm 1, a pH compound electrode 22 fixed on the front end of the mechanical arm 1, a solution pool 12 to be tested, a sample feeding pump 11, a sample discharge pump 10, and a flushing water pump 19, wherein the sample feeding pump 11 is used to The seawater is sucked into the solution pool 12 to be tested, and the sample discharge pump 10 is used to discharge the seawater from the liquid pool 12 to be tested; the mechanical arm 1 is used to place the pH compound electrode 22 in the liquid pool 12 to be tested or raise it, and the pH The pH value measured by the composite electrode 22 is transmitted to the central control module. Under the control of the central control module, the flushing water pump sucks clean water and cleans the raised pH composite electrode 22, and the cleaned pH composite electrode 22 is moved to In the KCL solution pool 8 of the electrode maintenance module;

The wireless communication module includes a zigbee module, and the data collected by the PH value acquisition module is wirelessly transmitted to the control room through this module;

The electrode maintenance module includes a KCL replenishment liquid container 21 with an electromagnetic valve, a turbidity sensor 7, a KCL solution pool 8, and a sewage pump 9. The turbidity sensor 7 is used to detect the degree of contamination of the standard sample liquid in the KCL solution pool 8, When the turbidity reaches the threshold, the central control module controls the sewage pump 9 to work, discharges the waste liquid in the KCL solution pool 8, and opens the electromagnetic valve at the bottom of the KCL replenishment liquid container 21 above the KCL solution pool 8 to release the KCL replenishment liquid;

The clean water acquisition module includes thermal silica gel 16, seawater storage tank 17, clean water storage tank 18, liquid level gauge 13, water inlet pump 14, regulating water pump 15 and condensation plate 20, and water inlet pump 14 is used for pumping seawater into the seawater storage tank 17; The main body of the silica gel 16 is used as the side wall of the seawater storage pool 17 and directly contacts the seawater in it; the heat-conducting silica gel 16 is also connected with the solar photovoltaic panel 2 for absorbing heat; the upper part of the seawater storage pool 17 is obliquely fixed with a condensation plate 20, which The plate 20 condenses the evaporated seawater into a liquid, and guides the condensed liquid into the clean storage tank 18; the liquid level gauge 13 is used to monitor the water volume in the clean storage tank 18, and the collected information is sent to the central control module, and the central control After the clean water volume reaches the maximum threshold, the module adjusts the water pump 15 to turn on, releases the seawater, and no longer evaporates and condenses; when the clean water reaches the minimum threshold, the water inlet pump 14 works;

The power supply module includes a solar photovoltaic panel 2 and a storage battery 4; the solar photovoltaic panel 2 absorbs light energy and converts it into electrical energy, which is stored in the storage battery 4 to provide power for the system.

detailed description

Fig. 1 is a schematic structural view of a PH composite electrode device. The PH composite electrode device with automatic cleaning and maintenance functions of the present invention includes a power supply module, a central control module, a wireless communication module, a pH value collection module, an electrode maintenance module and a clear water collection module . The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in FIG. 1 , the pH value acquisition module includes a mechanical arm 1 , a pH compound electrode 22 , a solution pool 12 to be tested, a water pump 10 , a water pump 11 , and a water pump 19 . The pH composite electrode 22 is controlled by the mechanical arm 1 to enter the liquid pool 12 to be tested, the water pump 11 works, the seawater enters the liquid pool 12 to be tested, and the measured pH value is transmitted to the central control module 5 . The water pump 10 works to discharge seawater. The mechanical arm 1 raises the pH composite electrode, and the water pump 19 works to draw clear water to rinse the composite electrode. The mechanical arm 1 then moves the pH composite electrode 22 into the KCL solution pool 8 .

As shown in FIG. 1 , the wireless communication module includes a zigbee module 3 . The data collected by the PH value acquisition module is wirelessly transmitted to the operating vessel control room through the module. Zigbee technology has unparalleled application advantages in low power consumption, low cost and networking capabilities.

As shown in Figure 2, it is a detailed diagram of the electrode maintenance module, including a KCL replenishment liquid container 21 with an electromagnetic valve, a turbidity sensor 7, a KCL solution pool 8, and a water pump 9. Seawater contains microorganisms, algae, industrial waste liquid and other impurities, and the turbidity sensor 7 can detect the degree of contamination of the standard sample liquid. When the turbidity reaches the threshold, the KCL standard solution has been contaminated and must be replaced. The water pump 9 works to discharge waste liquid. The electromagnetic valve at the bottom of the KCL replenishment liquid container 21 is opened to release the KCL replenishment liquid. Realized the update of KCL standard solution.

As shown in Figure 1 , the clean water collection module on the right side includes thermal silica gel 16 , seawater storage tank 17 , clean water storage tank 18 , liquid level gauge 13 , water pump 14 , water pump 15 and condensation plate 20 . Water pump 14 works, and seawater enters seawater pool 17. The heat-conducting silica gel 16 is connected to the solar photovoltaic panel 2 to absorb heat, the seawater evaporates, and condenses into a liquid when it encounters the condensation plate 20 . Since the condensation plate 20 and the photovoltaic panel 2 are inclined at the same angle, it has a drainage effect, and the condensed clear water flows into the clean water storage tank 18 . The liquid level gauge 13 monitors the amount of water. After the amount of clear water reaches the maximum threshold, the water pump 15 is turned on to release the seawater without evaporation and condensation, so as to ensure that the seawater will not crystallize and pollute in the tank. When the clear water reaches the minimum threshold, the water pump 14 works, and the above process is repeated.

As shown in FIG. 1 , the power supply module includes a solar photovoltaic panel 2 and a storage battery 4 . The solar photovoltaic panel 2 absorbs light energy and converts it into electrical energy, which is stored in the storage battery 4 to provide power for the system, so as to ensure continuous energy supply. Using solar energy for power supply can not only protect the environment, save resources, but also greatly prolong the working time of the device at sea.

As shown in Figure 3, the device controls the operation of the robotic arm through the central control module, uses the PH compound electrode to collect information, processes the information through the central control module, stores it in the data storage module, and transmits it to the control room of the operating vessel by the zigbee module ;Use the turbidity sensor and liquid level gauge to collect data, upload it to the central control module to analyze whether the pollution degree of KCL standard sample liquid and the amount of clean water reach the threshold, and control the water pump and electromagnetic valve to respond in time, completing the automatic collection of clean water and KCL The automatic replacement of the solution realizes the automatic cleaning and maintenance of the PH composite electrode device.

Claims (1)

1. A PH composite electrode device that transmits data via zigbee and can be cleaned and maintained automatically, including a power supply module and a central control module, PH value collection module, wireless communication module, electrode maintenance module and clear water collection module, wherein, The PH value acquisition module includes a mechanical arm (1), a pH composite electrode (22) fixed at the front end of the mechanical arm (1), a solution pool to be tested (12), a sampling water pump (11), a sampling water pump (10), a flushing Water pump (19), wherein, the sampling water pump (11) is used to suck seawater into the solution pool (12) to be tested, and the sample discharge pump (10) is used to discharge the seawater to the liquid pool to be tested (12); the mechanical arm ( 1) It is used to place the pH compound electrode (22) in the liquid pool (12) to be tested or raise it, and the pH value measured by the pH compound electrode (22) is transmitted to the central control module, under the control of the central control module , the flushing water pump sucks clean water and cleans the raised pH composite electrode (22), and the cleaned pH composite electrode (22) is moved to the KCL solution pool (8) of the electrode maintenance module; The wireless communication module includes a zigbee module, and the data collected by the PH value acquisition module is wirelessly transmitted to the control room through this module; Electrode maintenance module, including KCL replenishment liquid container (21) with electromagnetic valve, turbidity sensor (7), KCL solution pool (8), sewage pump (9), turbidity sensor (7) for detecting KCL solution pool The standard sample liquid in (8) is contaminated, and when the turbidity reaches the threshold, the central control module controls the sewage pump (9) to work, and discharges the waste liquid in the KCL solution pool (8). The electromagnetic valve at the bottom of the KCL replenishment liquid container (21) is opened to release the KCL replenishment liquid; The clean water collection module includes heat-conducting silica gel (16), seawater storage tank (17), clean water storage tank (18), liquid level gauge (13), water inlet pump (14), regulating water pump (15) and condensation plate (20). The water pump (14) is used to suck seawater into the seawater storage pool (17); the main body of the heat-conducting silica gel (16) is used as the side wall of the seawater storage pool (17), and is in direct contact with the seawater in it; the heat-conduction silica gel (16) is also connected with the solar photovoltaic The plate (2) is connected to absorb heat; the upper part of the seawater pool (17) is obliquely fixed with a condensation plate (20), and the condensation plate (20) condenses the evaporated seawater into a liquid, and guides the condensed liquid into the storage tank. In the clean water tank (18); the liquid level gauge (13) is used to monitor the water volume in the clean water tank (18), and the collected information is sent to the central control module, and the central control module adjusts the water pump ( 15) open, release seawater, no longer evaporating and condensing; when the clean water reaches the minimum threshold, the water inlet pump (14) works; The power supply module includes a solar photovoltaic panel (2) and a storage battery (4); the solar photovoltaic panel (2) absorbs light energy and converts it into electrical energy, which is stored in the storage battery (4) to supply power to the system.