Intelligent electrochemical water treatment reactor based on boron-doped diamond electrode

Abstract

The invention provides an intelligent electrochemical water treatment reactor based on a boron-doped diamond electrode. The reactor comprises at least one water treatment module, a front end cover and a rear end cover, the front end cover is detachably connected with the water treatment module adjacent to the front end cover, the rear end cover is detachably connected with the water treatment module adjacent to the rear end cover, and every two adjacent water treatment modules are detachably connected, and parallel and sealed water treatment channels are formed in all the water treatment modules; each water treatment module comprises an electrode assembly, each electrode assembly is connected with an electrode plug connector, and the electrode plug connectors between two adjacent water treatment modules are mutually plugged and enable the electrode assemblies of the two adjacent water treatment modules to be electrically connected in series; a driving circuit board is packaged in the front end cover, and is electrically connected with the electrode plug connectors of all the water treatment modules, so as to adjust the current and voltage of all the water treatment modules based on a control instruction, monitor the current and voltage operation states and operation data of all the water treatment modules, and feed back the current and voltage operation states and operation data to the system.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment equipment, and in particular to an intelligent electrochemical water treatment reactor based on a boron-doped diamond electrode. Background Art

[0002] Water plays an important role in our lives. It is the source of life and one of the most important material resources that humans rely on for survival and development. With the progress of human society and the development of the economy, the increasing expansion of industry, agriculture and cities has caused environmental deterioration, water resource pollution and serious waste. In particular, the wastewater produced by the chemical, pharmaceutical, printing and dyeing, petrochemical and other industries has the characteristics of high toxicity, high concentration and endless emergence of new pollutants, which seriously threatens the social and ecological cycle of water. The dual pressures of water shortage and water pollution have put forward higher and higher requirements and expectations for water treatment technology. Although the biological method in traditional water treatment has a low cost, it is powerless for some persistent organic pollutants with stable structure and biological toxicity; chemical treatment requires the addition of chemical reagents, which has a high cost and the risk of secondary pollution. There are many valuable substances, usable energy and water resources in wastewater, and traditional water treatment technology is difficult to meet the recovery of the above resources and energy. Therefore, water treatment technology that can enhance pollutant removal and achieve energy and resource recovery at the same time has become an urgent need for the development of this industry.

[0003] Electrochemical water treatment technology is a technology that improves the chemical composition and properties of water bodies through electrochemical reactions. The main principle is: under the action of direct current, the positive and negative ions in the aqueous solution between the positive and negative plates move to the plates with opposite polarity, and an electron gain and loss reaction (i.e., a discharge reaction) occurs, an oxidation reaction occurs at the anode, and a reduction reaction occurs at the cathode, so that the pollutants in the water body are degraded and removed through a series of direct or indirect redox reactions. Since most water pollutants, including organic matter, ammonia nitrogen, sulfide, cyanide, nitrite, etc., can be oxidized and removed, electrochemical catalytic oxidation is one of the most important pollutant conversion processes in the electrochemical water treatment process. Electrochemical catalytic oxidation technology has also become one of the most important electrochemical water treatment technologies, and has received widespread attention in the field of water ecological protection.

[0004] Electrochemical electrocatalytic oxidation reactions can be divided into two types: one is direct oxidation, that is, the pollutants are directly deprived of electrons on the surface of the anode, undergo oxidation reactions and are degraded; the other is indirect oxidation, that is, more strong oxidizing particles are produced in the area near the anode, such as hydroxyl radicals, active chlorine, sulfate radicals, etc., and then these strong oxidizing particles react with pollutants to degrade and remove pollutants. The core of electrochemical catalytic oxidation water treatment technology lies in the anode material. The degradation path, degradation effect and efficiency of oxidized pollutants formed by different anode materials are very different. The direct oxidation reaction depends on whether the anode material is an active electrode or an inert electrode. The active electrode has a relatively weak direct reaction, while the inert electrode can produce a stronger direct oxidation reaction. The indirect reaction depends on the competition between the oxidation reaction of the strong oxidizing particles produced in the water body and the oxygen evolution reaction. The more and more oxidizing particles are produced, the stronger the ability to oxidize and degrade pollutants.

[0005] Boron-doped diamond material is made by injecting boron atoms into the diamond crystal structure to replace some carbon atoms during the diamond preparation process. However, since there is one less electron around the boron atom than the carbon atom, an electron hole is formed in the crystal structure. Therefore, boron-doped diamond has the characteristics of a p-type semiconductor and can be used as an electrode. At the same time, since diamond has an ultra-wide bandgap width, boron-doped diamond has super strong oxidation ability when used as an anode material. At the same time, since diamond has extremely low adhesion, its oxidation effect and oxidation efficiency are higher than those of other material electrodes, whether it is direct electrochemical oxidation or indirect oxidation.

[0006] In addition to the fact that different electrode materials will lead to different treatment effects and energy efficiency, another important factor in electrochemical catalytic oxidation technology is the current density on the anode surface. Different current densities will result in different electrochemical reactions on the electrode surface and different reaction efficiencies and effects.

[0007] The applicant has found that the prior art has at least the following technical problems: Traditional electrochemical reaction devices often use an electrolytic cell method, that is, the electrode sheet is directly inserted into the electrolytic cell, and multiple groups of positive and negative electrodes are connected in parallel, which is equivalent to forming a pair of anode and cathode plates with a larger area. However, due to structural reasons, especially the difference in the spacing between the plates, or disturbances caused by various factors during operation, the current distribution on the surface of the plates is often uneven. Traditional electrolytic cell-type electrochemical water treatment equipment has poor control over hydraulic flow because it has no flow channel design. Water cannot flow evenly over the electrode surface, and dead water areas are prone to occur. The traditional parallel electrode group is in a constant current working mode with high current and low voltage during operation, and the energy loss of large current during transmission is large. In addition, the existing electrochemical water treatment equipment has a low degree of intelligence, cannot provide current and voltage control and monitoring, cannot achieve remote precise control, cannot achieve fault alarm and automatic disposal, etc. Traditional electrochemical reaction devices need to be customized according to the water quality and quantity of the water being treated, which has a long cycle, high cost, and the risk of design defects. In addition, the electrolytic cells and supporting components of traditional equipment are fixed structures, and the equipment needs to be disassembled as a whole during installation, maintenance and replacement, which makes maintenance and replacement complicated. Summary of the invention

[0008] The purpose of the present invention is to provide an intelligent electrochemical water treatment reactor based on boron-doped diamond electrodes to solve the technical problem that the electrochemical reactor in the prior art cannot achieve intelligent control. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0009] To achieve the above object, the present invention provides the following technical solutions: In the first aspect, the present invention provides an intelligent electrochemical water treatment reactor, comprising at least one water treatment module, a front end cover located on one side of all the water treatment modules, and a rear end cover located on the other side of all the water treatment modules; wherein the front end cover and the water treatment module adjacent thereto, the rear end cover and the water treatment module adjacent thereto, and two adjacent water treatment modules are all detachably connected, and parallel and sealed water treatment channels are formed in all the water treatment modules; each of the water treatment modules comprises an electrode assembly, each of the electrode assemblies is connected to an electrode connector, the electrode connectors between two adjacent water treatment modules are mutually plugged in and the electrode assemblies of the two adjacent water treatment modules are electrically connected in series; a driving circuit board is encapsulated in the front end cover, and the driving circuit board is electrically connected to the electrode connectors of all the water treatment modules, so as to adjust the current and voltage of all the water treatment modules based on the system control instructions and monitor the current and voltage operating status and operating data of all the water treatment modules and feed back to the system.

[0010] According to a preferred embodiment, each of the water treatment modules further includes an outer packaging shell and an inner packaging shell for packaging the electrode assembly, the electrode assembly includes a first anode, a cathode and a second anode which are sealed and packaged between the outer packaging shell and the inner packaging shell, and the cathode is sealed between the first anode and the second anode and forms a water treatment channel between the opposite surfaces of the first anode, the cathode and the second anode; the first anode and the second anode have a boron-doped diamond thin film coating on one side facing the cathode; and water flow channel openings allowing water to flow into or out of the water treatment channel are provided at the upper and lower parts of the outer packaging shell and the inner packaging shell.

[0011] According to a preferred embodiment, each group of the electrode connectors includes an anode connecting piece, a cathode connecting piece and a direct-insert spring piece, wherein the anode connecting piece is connected to the first anode and the second anode in the water treatment module and can be plugged into the negative electrode of the next water treatment module, the cathode connecting piece is connected to the cathode in the water treatment module and can be plugged into the negative electrode of the previous water treatment module, and the direct-insert spring piece connects the positive electrode of each water treatment module in series, and the direct-insert spring piece of the terminal water treatment module is connected to the terminal of the anode connecting piece through a connecting spring piece.

[0012] According to a preferred embodiment, a positive socket is connected to the end of the straight-insertion spring sheet of the first water treatment module, and the positive socket is connected to the positive pole of the driving circuit board; the cathode connecting piece in the first water treatment module is connected to a negative socket, and the negative socket is connected to the negative pole of the driving circuit board; it is used to adjust the current and voltage of all water treatment modules through the driving circuit board based on system control instructions and monitor the current and voltage operating status and operating data of the water treatment modules and feed back to the system.

[0013] According to a preferred embodiment, the driving circuit board includes an MCU module, a DC-DC adjustable power supply module, a current sampling resistor module and a liquid crystal information display module, wherein the DAC interface of the MCU module is connected to the input end of the DC-DC adjustable power supply module, the output end of the DC-DC adjustable power supply module is connected to the input end of the current sampling resistor module, the output end of the current sampling resistor module is connected to the electrode assembly of the water treatment module through an electrode connector, and the output end of the current sampling resistor module is also connected to the ADC interface of the MCU module through a differential operational amplifier; the liquid crystal information display module is connected to the IIC interface of the MCU module; and a display screen connected to the liquid crystal information display module is provided on the front end cover.

[0014] According to a preferred implementation, the driving circuit board further includes a communication module, the communication module is connected to the UART interface of the MCU module, and the communication module includes an industrial bus or a wireless communication module. According to a preferred embodiment, an electrode power supply plug-in interface is provided on the packaging outer shell and the packaging inner shell, the end of each group of electrode connectors is limited within the electrode power supply plug-in interface, and the electrode power supply plug-in interface on the packaging outer shell and the electrode power supply plug-in interface on the packaging inner shell can be plugged into each other.

[0015] According to a preferred embodiment, when the water treatment modules include two or more, the water outlets of two adjacent water treatment modules are sealed and connected through a water channel connection structure, the encapsulation shells of two adjacent water treatment modules are connected by plugging, and a snap is provided on the shell edge of the encapsulation shell to lock the encapsulation shells of the two adjacent water treatment modules through a snap knob, and / or to lock the front end cover and the rear end cover and the encapsulation shell of the water treatment module adjacent thereto through a snap knob.

[0016] According to a preferred embodiment, the first anode is positioned on the first anode frame, a first supporting sealing ring is provided at the gap between the first anode frame and the first anode, and the first supporting sealing ring is supported between the packaging shell and the first anode frame to seal the gap between the first anode frame and the first anode and the water flow channel opening between the packaging shell and the first anode frame; The second anode is positioned on the second anode frame, and a second supporting sealing ring is provided at the gap between the second anode frame and the second anode, and the second supporting sealing ring is supported between the second anode frame and the packaging inner shell to seal the gap between the second anode frame and the second anode and the water flow channel opening between the second anode frame and the packaging inner shell. According to a preferred embodiment, a sealing groove is provided on the side of the first anode frame and the second anode frame facing the cathode, and the sealing groove is a raised structure arranged around the outer edge of the water flow channel opening of the first anode and the first anode frame or the outer edge of the water flow channel opening of the second anode and the second anode frame, and a water channel sealing ring is installed in the sealing groove so that the water treatment channel is formed between the opposite surfaces of the first anode, the cathode and the second anode through the water channel sealing ring.

[0017] According to a preferred embodiment, a water flow channel is reserved on the cathode, which can be connected with the water flow channel openings on the packaging shell, the packaging inner shell, the first anode frame and the second anode frame; a pin connected to a group of electrode connectors is reserved on the cathode, and a clearance hole is provided on the first anode frame and the second anode frame at a position corresponding to the pin to allow the electrode connector to pass through. According to a preferred embodiment, a first inlet and outlet water pipe connected to the upper water flow channel openings of all the water treatment modules is also provided on the front end cover, and a second inlet and outlet water pipe connected to the lower water flow channel openings of all the water treatment modules is provided on the rear end cover.

[0018] Based on the above technical solution, the intelligent electrochemical water treatment reactor of the present invention has at least the following technical effects: The electrochemical water treatment reactor of the present invention includes at least one water treatment module, a front end cover located on one side of all water treatment modules, and a rear end cover located on the other side of all water treatment modules; wherein, the front end cover and the water treatment module adjacent thereto, the rear end cover and the water treatment module adjacent thereto, and two adjacent water treatment modules are all detachably connected, and parallel and sealed water treatment channels are formed in all water treatment modules. Each water treatment module includes an electrode assembly, each electrode assembly is connected to an electrode connector, and the electrode connectors between two adjacent water treatment modules are plugged into each other to form a series electrical connection between the electrode assemblies of the two adjacent water treatment modules. A driving circuit board is encapsulated in the front end cover, and the driving circuit board is electrically connected to the electrode connectors of all water treatment modules, so as to adjust the current and voltage of all water treatment modules based on the system control instructions and monitor the current and voltage operating status and operating data of all water treatment modules and feed back to the system.

[0019] The intelligent electrochemical water treatment reactor of the present application is provided with a driving circuit board, which is electrically connected to all water treatment modules, and is used to accurately power the water treatment modules based on system control instructions and monitor the operating status and operating data of the water treatment modules and feed back to the system. Thus, adjustable constant current and constant voltage power supply can be provided to the electrodes through the adjustment of the driving circuit board. The system sends start and stop, as well as output voltage and current instructions to the driving circuit board through the communication module, and the driving circuit board supplies power to the electrodes according to the instructions; the driving circuit board reports the reactor information (collected voltage and current) to the system through the communication module. The driving circuit board can also judge the operating status of the reactor according to the preset algorithm, and can report the alarm information through the communication module. The staff can take timely strategies (suspend power supply) according to the preset program, so as to achieve the purpose of accurately detecting the operating status and precise control of the electrochemical water treatment reactor.

[0020] On the other hand, the electrochemical water treatment reactor of the present application electrically connects the electrode assemblies of each water treatment module in series through electrode connectors. Compared with the positive and negative electrodes in parallel in traditional electrochemical reactors, the present application can make the current distribution of the electrode plates more even. Compared with the high current and low voltage mode of the traditional parallel connection method, the power supply current of the electrochemical water treatment reactor of the present application is smaller, so the loss of the wires is lower, the energy efficiency is higher, and the voltage increase is easier to control and adjust.

[0021] On the other hand, the electrochemical water treatment reactor of the embodiment of the present application can form a series and sealed water flow channel inside the reactor, so that water can flow evenly through each electrode surface, improve the water treatment effect, and avoid the problem of dead water area. The water treatment module of the present invention adopts a modular design, and each water treatment module includes a minimum unit consisting of two anodes and a cathode. The first anode and the second anode have a boron-doped diamond film coating on the front side and are arranged opposite to the cathode. The minimum unit is independently sealed and packaged by a packaging shell and a packaging inner shell. Each water treatment module is plugged and connected. A certain number of water treatment modules can be selected according to actual conditions to form a reactor, and a front end cover is installed at the front end of all water treatment modules, and a rear end cover is installed at the rear end of all water treatment modules, so that installation, maintenance and replacement operations are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the intelligent electrochemical water treatment reactor of the present invention; Figure 2 It is an exploded view of a water treatment module in the intelligent electrochemical water treatment reactor of the present invention; Figure 3 It is an exploded view of multiple water treatment modules in the intelligent electrochemical water treatment reactor of the present invention; Figure 4 It is a connection diagram of multiple electrode connectors in the intelligent electrochemical water treatment reactor of the present invention; Figure 5 It is a functional block diagram of a driving circuit board in the intelligent electrochemical water treatment reactor of the present invention.

[0024] In the figure: 1-water treatment module; 2-front end cover; 3-rear end cover; 4-display screen; 5-water channel connection structure; 6-buckle knob; 7-electrode connector; 8-first water inlet and outlet pipes; 9-second water inlet and outlet pipes; 101-encapsulation shell; 102-first supporting seal ring; 103-first anode frame; 104-first anode; 105-water channel seal ring; 106-cathode; 107-encapsulation inner shell; 102'-second supporting seal ring; 103'-second anode frame; 104'-second anode; 1010-electrode power supply plug-in interface; 1011-buckle; 1041-sealing groove; 1042-giving hole; 1061-pin; 201-connecting spring; 202-direct plug spring; 203-anode connecting piece; 204-cathode connecting piece; 205-positive socket; 206-negative socket. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0026] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, the present invention provides an intelligent electrochemical water treatment reactor, comprising at least one water treatment module 1, a front end cover 2 located on one side of all water treatment modules 1, and a rear end cover 3 located on the other side of all water treatment modules 1. Among them, the front end cover 2 and the adjacent water treatment module 1, the rear end cover 3 and the adjacent water treatment module 1, and the two adjacent water treatment modules 1 can be detachably connected, and parallel and sealed water treatment channels are formed in all water treatment modules 1. Water can flow evenly through each electrode surface, improve the water treatment efficiency, and avoid the problem of dead water area.

[0028] Each water treatment module 1 includes an electrode assembly, each electrode assembly is connected to an electrode connector 7, and the electrode connectors 7 between two adjacent water treatment modules 1 are plugged into each other to form a series electrical connection between the electrode assemblies of the two adjacent water treatment modules 1. Compared with the positive and negative electrodes in parallel in a conventional electrochemical reactor, the present application can make the current distribution of the electrode plate more even, and compared with the high current and low voltage mode of the conventional parallel connection mode, the power supply current of the electrochemical water treatment reactor of the present application is smaller, so the loss of the wire is lower, the energy efficiency is higher, and the voltage increase is easier to control and adjust.

[0029] A driving circuit board is encapsulated in the front end cover 2, and the driving circuit board is electrically connected to the electrode connectors 7 of all water treatment modules 1, so as to adjust the current and voltage of all water treatment modules 1 based on the system control instructions, monitor the current and voltage operating status and operating data of all water treatment modules 1, and feed back to the system. Thus, the electrode can be provided with adjustable constant current and constant voltage power supply through the adjustment of the driving circuit board. The system sends start and stop, as well as output voltage and current instructions to the driving circuit board through the communication module, and the driving circuit board supplies power to the electrode according to the instructions; the driving circuit board reports the reactor information (collected voltage and current) to the system through the communication module. The driving circuit board can also judge the operating status of the reactor according to the preset algorithm, and can report the alarm information through the communication module. The staff can take timely strategies (suspend power supply) according to the preset program, so as to achieve the purpose of accurate detection of the operating status and accurate control of the electrochemical water treatment reactor.

[0030] In some embodiments, Figure 2 As shown, each water treatment module also includes a packaging shell 101 and a packaging inner shell 107 for packaging an electrode assembly, and the electrode assembly includes a first anode 104, a cathode 106 and a second anode 104' sealed and packaged between the packaging shell 101 and the packaging inner shell 107, and the cathode 106 is sealed between the first anode 104 and the second anode 104' and forms a water treatment channel between the opposite surfaces of the first anode 104, the cathode 106 and the second anode 104'. The first anode 104 and the second anode 104' have a boron-doped diamond film coating on one side facing the cathode 106; The upper and lower parts of the packaging shell 101 and the packaging inner shell 107 are provided with water flow channel openings that allow water to flow into or out of the water treatment channel. The cathode 106 is made of stainless steel or titanium.

[0031] A sealed water treatment channel can then be formed inside the reactor. The water treatment module of the present invention adopts a modular design, and each water treatment module includes a minimum unit consisting of two anodes and a cathode, and the first anode and the second anode have a front side with a boron-doped diamond film coating and are arranged opposite to the cathode. The minimum unit is independently sealed and packaged by a packaging shell and a packaging inner shell, and each water treatment module is plug-connected. A certain number of water treatment modules can be selected according to actual conditions to form a reactor, and a front end cover is installed at the front end, and a rear end cover is installed at the rear end, so that installation, maintenance and replacement operations are convenient.

[0032] like Figure 2As shown, the first anode 104 is positioned on the first anode frame 103. The first anode frame 103 is fixed between the encapsulation outer shell 101 and the encapsulation inner shell 107 by bolts and other fixing parts. A first supporting sealing ring 102 is provided at the gap between the first anode frame 103 and the first anode 104, and the first supporting sealing ring 102 is supported between the encapsulation outer shell 101 and the first anode frame 103 to seal the gap between the first anode frame 103 and the first anode 104 and the water flow channel opening between the encapsulation outer shell 101 and the first anode frame 103. In some embodiments, as Figure 2 As shown, the first supporting sealing ring 102 includes a middle sealing ring for sealing the gap between the first anode 104 and the first anode frame 103 and an end sealing ring for sealing the water flow channel opening, and the middle sealing ring and the end sealing ring are an integrated structure, so as to prevent water from flowing out of the gap between the first anode frame and the first anode, and prevent water flowing through the water flow channel opening from flowing out of the water treatment module, thereby playing a sealing role.

[0033] The second anode 104' is positioned on the second anode frame 103', and the second anode frame 103' is fixed between the packaging outer shell 101 and the packaging inner shell 107 by bolts and other fixing parts. A second supporting sealing ring 102' is provided at the gap between the second anode frame 103' and the second anode 104', and the second supporting sealing ring 102' is supported between the second anode frame 103' and the packaging inner shell 107 to seal the gap between the second anode frame 103' and the second anode 104' and the water flow channel opening between the second anode frame 103' and the packaging inner shell 107. In some embodiments, as Figure 2 As shown, the second support seal ring 102' includes an intermediate seal ring for sealing the gap between the second anode 104' and the second anode frame 103' and an end seal ring for sealing the water flow channel opening, and the intermediate seal ring and the end seal ring are an integrated structure, so as to prevent water from flowing out of the gap between the second anode 104' and the second anode frame 103', and prevent water flowing through the water flow channel opening from flowing out of the water treatment module, thereby playing a sealing role. It can be understood that the first support seal ring 102 and the second support seal ring 102' have the same structure.

[0034] In some embodiments, a sealing groove 1041 is provided on the side of the first anode frame 103 and the second anode frame 103' facing the cathode 106, and the sealing groove 1041 is a convex structure provided around the outer edge of the water flow channel opening of the first anode 104 and the first anode frame 103 or the outer edge of the water flow channel opening of the second anode 104' and the second anode frame 103'. That is, it can be understood that the sealing groove 1041 is provided protruding from the surface of the first anode frame 103 or the second anode frame 103'. A waterway sealing ring 105 is installed in the sealing groove 1041, so that a water treatment channel is formed between the opposite surfaces of the first anode 104, the cathode 106 and the second anode 104' through the waterway sealing ring 105. So that the water to be treated flows from one anode to the other anode, so that the water can flow evenly through each electrode surface, thereby improving the water treatment efficiency.

[0035] In some embodiments, Figure 2 As shown, a water flow channel is reserved on the cathode 106, which can be connected with the water flow channel openings on the outer package shell 101, the inner package shell 107, the first anode frame 103 and the second anode frame 103', so as to facilitate the flow of water. In some embodiments, a pin 1061 connected to a set of electrode connectors 7 is reserved on the cathode 106, and a clearance hole 1042 is provided on the first anode frame 103 and the second anode frame 103' at a position corresponding to the pin 1061 to allow the electrode connector 7 to pass through. The clearance hole 1042 can allow the electrode connector fixedly connected to the pin 1061 to pass through and then be limited to the electrode power supply plug-in interface of the outer package shell and the inner package shell.

[0036] In some embodiments, an electrode power supply plug-in interface 1010 is provided on the encapsulation outer shell 101 and the encapsulation inner shell 107, and the end of each group of electrode plug-in components 7 is limited in the electrode power supply plug-in interface 1010, and the electrode power supply plug-in interface on the encapsulation outer shell 101 and the electrode power supply plug-in interface on the encapsulation inner shell 107 can be plugged into each other. In this way, the electrode plug-in components 7 of two adjacent water treatment modules between multiple water treatment modules can be plugged in through the electrode power supply plug-in interface.

[0037] In some embodiments, Figure 4As shown, each group of electrode connectors 7 includes an anode connector 203, a cathode connector 204 and a direct-insertion spring 202. Among them, the anode connector 203 is connected to the first anode 104 and the second anode 104' in the water treatment module 1, and can be plugged into the negative pole of the next water treatment module 1, that is, the first anode 104 and the second anode 104' are respectively connected to the anode connector 203 through wires. The cathode connector 204 is connected to the cathode 106 in the water treatment module 1, and can be plugged into the negative pole of the previous water treatment module 1 or the cathode connector 204 in the first water treatment module 1 is connected to the negative pole socket 206, and the negative pole socket 206 can be connected to the negative pole of the driving circuit board. The direct-insertion spring 202 is connected in series to the positive pole of each water treatment module 1, and the positive pole socket 205 is connected to the end of the direct-insertion spring 202 of the first water treatment module 1, and the positive pole socket 205 is connected to the positive pole of the driving circuit board. The terminal of the direct-insertion spring sheet 202 of the terminal water treatment module 1 and the terminal of the anode connecting sheet 203 are connected via the connecting spring sheet 201, thereby realizing the series electrical connection of the electrode assemblies of each water treatment module.

[0038] In some embodiments, when the water treatment module 1 includes two or more than two, the water flow channel openings of two adjacent water treatment modules 1 are sealed and connected by a water channel connection structure 5 to prevent water from flowing out. The water channel connection structure 5 can be sealed with the water flow channel openings of two adjacent water treatment modules 1 by threaded cooperation. In some embodiments, the encapsulation shells 101 of two adjacent water treatment modules 1 can be connected by plugging, that is, the edge of the upper encapsulation shell 101 is plugged into the edge of the next encapsulation shell 101, and at the same time, the electrode power supply plug-in interface 1010 of the upper encapsulation shell 101 is plugged into the electrode power supply plug-in interface 1010 of the next encapsulation shell 101. In some embodiments, as Figure 3 As shown, a buckle 1011 is provided on the shell edge of the encapsulating shell 101, so as to lock and fix the encapsulating shells 101 of two adjacent water treatment modules 1 through the buckle knob 6, and / or to lock and fix the encapsulating shells 101 of the water treatment modules 1 adjacent thereto through the buckle knob 6. During installation, the buckle knob can be buckled on the buckle 1011 of two adjacent encapsulating shells 101, and the buckle knob can be rotated by a tool so that the buckle knob is clamped on the two adjacent buckles, so as to achieve the fixation of two adjacent water treatment modules 1 or the fixation between the adjacent water treatment modules and the front end cover or the rear end cover, which is convenient for installation and disassembly, and is convenient for later repair and maintenance.

[0039] In some embodiments, a driving circuit board is encapsulated in the front end cover 2, and the driving circuit board is electrically connected to all water treatment modules. In some embodiments, the positive electrode socket 205 is connected to the positive electrode of the driving circuit board, and the negative electrode socket 206 is connected to the negative electrode of the driving circuit board; it is used to accurately power the water treatment module based on the system control instruction and feedback the operating status and operating data of the water treatment module to the system.

[0040] In some embodiments, Figure 5 As shown, the driving circuit board includes an MCU module, a DC-DC adjustable power supply module, a current sampling resistor module, a liquid crystal screen information display module and a communication module, wherein the DAC interface of the MCU module is connected to the input end of the DC-DC adjustable power supply module, the output end of the DC adjustable power supply is connected to the input end of the current sampling resistor module, the output end of the current sampling resistor module is connected to the electrode assembly through the electrode connector, and the output end of the current sampling resistor module is also connected to the ADC interface of the MCU module through a differential operational amplifier. The DC-DC adjustable power supply module is connected to an external DC power supply for power supply, for example, the external DC power supply is 36V, 24V, 48V, etc. The external DC power supply, the DC-DC adjustable power supply module, the current sampling resistor module and the electrode assembly constitute the main loop, and the differential operational amplifier is connected to the ADC pin of the MCU module to form a feedback loop for detecting the current in the electrode loop and the voltage at both ends of the electrode. Based on the current value collected, the MCU module adjusts the voltage output of the DC-DC adjustable power supply module in real time through the DAC interface, so that the electrode can be provided with adjustable constant current and constant voltage power supply through the adjustment of the driving circuit board. The output end of the external DC power supply is also connected to the input end of the DCDC, the output end of the DCDC is connected to the input end of the LDO, the output end of the LDO is connected to the VCC pin of the MCU module, and the external DC power supply, DCDC and LDO constitute a power supply circuit of the driving circuit board.

[0041] The LCD information display module is connected to the IIC interface of the MCU module. A display screen 4 connected to the LCD information display module is provided on the front end cover for real-time display of voltage, current, flow and device ID. At the same time, information transmitted through the remote signal line can be displayed on the display screen.

[0042] The communication module is connected to the UART interface of the MCU module. The communication module includes an industrial bus or a wireless communication module. In some embodiments, the industrial bus can be an RS485 bus interface or a CAN bus interface, and the wireless communication module can be a Bluetooth communication module, a WiFi communication module or a lora communication module. The communication module is connected to the UART interface of the MCU module, and the communication module is connected to the control system. The output parameters and control set by the control system enable the query of real-time voltage and current data. At the same time, the control system can also send start and stop, as well as output voltage and current instructions to the driver circuit board through the communication module, and the driver circuit board supplies power to the electrode according to the instructions; the driver circuit board reports the reactor information (collected voltage and current) to the system through the communication module. In addition, the driver circuit board can judge the operating status of the reactor according to the preset algorithm, and can report the alarm information through the communication module. The staff can take timely strategies (suspend power supply) according to the preset program, so as to achieve the purpose of accurate detection of the operating status and accurate control of the electrochemical water treatment reactor.

[0043] In some embodiments, Figure 1 As shown, a first water inlet and outlet pipe 8 connected to the upper water flow channel openings of all water treatment modules 1 is provided on the front end cover 2, and a second water inlet and outlet pipe 9 connected to the lower water flow channel openings of all water treatment modules 1 is provided on the rear end cover 3. Water to be treated is injected into the reactor through the water inlet pipe, and flows out from the water outlet pipe after the electrochemical reaction.

[0044] The intelligent electrochemical water treatment reactor of the present invention is provided with a closed water treatment channel, which ensures that the water to be treated can flow evenly through each electrode surface, and can realize the problem of accurate control of hydraulic flow. At the same time, the electrochemical water treatment reactor of the present invention adopts a modular design, which is more convenient for installation, maintenance and replacement. In addition, the electrochemical water treatment reactor of the present invention is internally integrated with a driving circuit board, which can realize functions such as remote and automatic control of reactor power supply, information collection and diagnosis of equipment operation status.

[0045] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An intelligent electrochemical water treatment reactor based on boron-doped diamond electrodes, characterized in that: The invention comprises at least one water treatment module (1), a front end cover (2) located on one side of all the water treatment modules (1), and a rear end cover (3) located on the other side of all the water treatment modules (1); wherein the front end cover (2) and the adjacent water treatment module (1), the rear end cover (3) and the adjacent water treatment module (1), and two adjacent water treatment modules (1) are all detachably connected, and parallel and sealed water treatment channels are formed in all the water treatment modules (1); each of the water treatment modules (1) comprises an electrode assembly , each of the electrode assemblies is connected to an electrode connector (7), the electrode connectors (7) between two adjacent water treatment modules (1) are plugged into each other so that the electrode assemblies of the two adjacent water treatment modules (1) are electrically connected in series; a driving circuit board is encapsulated in the front end cover (2), the driving circuit board is electrically connected to the electrode connectors (7) of all the water treatment modules (1), and is used to adjust the current and voltage of all the water treatment modules (1) based on system control instructions and monitor the operating status and operating data of all the water treatment modules (1) and feed back to the system.

2. The intelligent electrochemical water treatment reactor according to claim 1, characterized in that: Each of the water treatment modules further comprises an outer packaging shell (101) and an inner packaging shell (107) for packaging the electrode assembly, wherein the electrode assembly comprises a first anode (104), a cathode (106) and a second anode (104') which are sealed and packaged between the outer packaging shell (101) and the inner packaging shell (107), and the cathode (106) is sealed between the first anode (104) and the second anode (104') and forms a water treatment channel between the opposite surfaces of the first anode (104), the cathode (106) and the second anode (104'); a boron-doped diamond thin film coating is provided on one side of the first anode (104) and the second anode (104') facing the cathode (106); and water flow channel openings for allowing water to flow into or out of the water treatment channel are provided at the upper and lower parts of the outer packaging shell (101) and the inner packaging shell (107).

3. The intelligent electrochemical water treatment reactor according to claim 2, characterized in that: Each group of electrode connectors (7) comprises an anode connecting piece (203), a cathode connecting piece (204) and a direct-insertion spring piece (202), wherein the anode connecting piece (203) is connected to the first anode (104) and the second anode (104') in the water treatment module (1), and can be plugged into the negative electrode of the next water treatment module (1); the cathode connecting piece (204) is connected to the cathode (106) in the water treatment module (1), and can be plugged into the negative electrode of the previous water treatment module (1); the direct-insertion spring piece (202) is connected in series to the positive electrode of each water treatment module (1), and the direct-insertion spring piece (202) of the terminal water treatment module (1) is connected to the terminal of the anode connecting piece (203) via a connecting spring piece (201).

4. The intelligent electrochemical water treatment reactor according to claim 3, characterized in that: A positive socket (205) is connected to the end of the direct-insertion spring sheet (202) of the first water treatment module (1), and the positive socket (205) is connected to the positive pole of the driving circuit board; a negative socket (206) is connected to the cathode connecting sheet (204) in the first water treatment module (1), and the negative socket (206) is connected to the negative pole of the driving circuit board; the current and voltage of all water treatment modules (1) are adjusted through the driving circuit board based on system control instructions, and the operating status and operating data of the water treatment modules (1) are monitored and fed back to the system.

5. The intelligent electrochemical water treatment reactor according to claim 1, characterized in that: The driving circuit board comprises an MCU module, a DC-DC adjustable power module, a current sampling resistor module and a liquid crystal information display module, wherein the DAC interface of the MCU module is connected to the input end of the DC-DC adjustable power module, the output end of the DC-DC adjustable power module is connected to the input end of the current sampling resistor module, the output end of the current sampling resistor module is connected to the electrode assembly of the water treatment module through an electrode connector, and the output end of the current sampling resistor module is also connected to the ADC interface of the MCU module through a differential operational amplifier; the liquid crystal information display module is connected to the IIC interface of the MCU module; and a display screen (4) connected to the liquid crystal information display module is provided on the front end cover (2).

6. The intelligent electrochemical water treatment reactor according to claim 5, characterized in that: The driving circuit board also includes a communication module, which is connected to the UART interface of the MCU module. The communication module includes an industrial bus or a wireless communication module.

7. The intelligent electrochemical water treatment reactor according to claim 2, characterized in that: An electrode power supply plug-in interface (1010) is provided on the outer packaging shell (101) and the inner packaging shell (107); the end of each group of electrode plug connectors (7) is located within the electrode power supply plug-in interface (1010); and the electrode power supply plug-in interface on the outer packaging shell (101) and the electrode power supply plug-in interface on the inner packaging shell (107) can be plugged into each other.

8. The intelligent electrochemical water treatment reactor according to claim 2, characterized in that: When the water treatment modules (1) include two or more, the water inlets of two adjacent water treatment modules (1) are sealed and connected via a water channel connection structure (5), the encapsulation shells (101) of the two adjacent water treatment modules are connected via plug-in, and a buckle (1011) is provided on the shell edge of the encapsulation shell (101) to lock the encapsulation shells (101) of the two adjacent water treatment modules via a buckle knob (6), and / or to lock the front end cover (2) and the rear end cover (3) and the encapsulation shell (101) of the adjacent water treatment module (1) via a buckle knob (6).

9. The intelligent electrochemical water treatment reactor according to claim 2, characterized in that: The first anode (104) is positioned on a first anode frame (103), a first supporting sealing ring (102) is provided at a gap between the first anode frame (103) and the first anode (104), and the first supporting sealing ring (102) is supported between the packaging shell (101) and the first anode frame (103) to seal the gap between the first anode frame (103) and the first anode (104) and a water flow channel opening between the packaging shell (101) and the first anode frame (103); The second anode (104') is positioned on a second anode frame (103'), a second supporting sealing ring (102') is provided at a gap between the second anode frame (103') and the second anode (104'), and the second supporting sealing ring (102') is supported between the second anode frame (103') and the packaging inner shell (107) to seal the gap between the second anode frame (103') and the second anode (104') and a water flow channel opening between the second anode frame (103') and the packaging inner shell (107).

10. The intelligent electrochemical water treatment reactor according to claim 9, characterized in that: A sealing groove (1041) is provided on one side of the first anode frame (103) and the second anode frame (103') facing the cathode (106); the sealing groove (1041) is a protruding structure provided around the outer edge of the water flow channel opening of the first anode (104) and the first anode frame (103) or the outer edge of the water flow channel opening of the second anode (104') and the second anode frame (103'); a water channel sealing ring (105) is installed in the sealing groove (1041) so as to form the water treatment channel between the opposite surfaces of the first anode (104), the cathode (106) and the second anode (104') through the water channel sealing ring (105).

11. The intelligent electrochemical water treatment reactor according to claim 10, characterized in that: The cathode (106) is provided with a water flow channel which is connected to water flow channel openings on the packaging outer shell (101), the packaging inner shell (107), the first anode frame (103) and the second anode frame (103'); The cathode (106) is provided with pins (1061) connected to a group of electrode connectors (7), and positions corresponding to the pins (1061) are provided on the first anode frame (103) and the second anode frame (103') with clearance holes (1042) for allowing the electrode connectors (7) to pass through.

12. The intelligent electrochemical water treatment reactor according to claim 1, characterized in that: A first water inlet and outlet pipe (8) connected to the upper water flow channel openings of all the water treatment modules is also provided on the front end cover (2), and a second water inlet and outlet pipe (9) connected to the lower water flow channel openings of all the water treatment modules is provided on the rear end cover (3).

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