Efficient flocculation electrolytic reaction device

Abstract

The utility model relates to the technical field of electrolysis devices, and provides an efficient flocculation electrolysis reaction device which comprises an electrolytic tank, an anode plate and a cathode plate are arranged in the electrolytic tank in a spaced mode, an oxygen collector covering the anode plate and a hydrogen collector covering the cathode plate are arranged in the electrolytic tank, and the electrolytic tank is connected with a heater. The heater is connected with a water inlet pipe, the oxygen collector and the hydrogen collector are respectively connected with an oxygen storage tank and a hydrogen storage tank through a first exhaust pipeline and a second exhaust pipeline, and the hydrogen storage tank and the oxygen storage tank are both connected with the heater. By arranging the oxygen collector and the hydrogen collector, oxygen and hydrogen generated in the electrolysis process are collected and serve as fuel of the heater to heat sewage, energy is saved, the cost is reduced, meanwhile, the viscosity of the heated sewage is effectively reduced, molecular thermal motion is improved, the removal rate of heavy metal, SS, colloid and COD is increased, and the service life of the sewage is prolonged. And the electric flocculation treatment efficiency can be improved.

Description

Technical Field

[0001] The present application belongs to the technical field of electrolysis devices, and more specifically, relates to a high-efficiency flocculation electrolysis reaction device. Background Art

[0002] With the rapid increase of human industrial activities and population, environmental problems are becoming more and more serious. Among environmental problems, water pollution is the top priority. Therefore, the technology of treating polluted water and achieving standard discharge or reuse is becoming more and more important.

[0003] Current sewage treatment processes typically utilize flocculation, sedimentation, and filtration. In existing sedimentation-type sewage treatment equipment, water flows under its own gravity through sedimentation plates, then through the filtration layer before exiting the equipment. During operation, this type of equipment suffers from slow water flow, which prevents sufficient mixing with the enzymes and short contact time with the sedimentation plates. This results in suboptimal flocculation and sedimentation, resulting in low sewage purification efficiency and a need for innovation and improvement.

[0004] To this end, the research and technology of electroflocculation has been applied to the purification and treatment of various water bodies. The electroflocculation electrolysis device used in electroflocculation generally consists of an electrolytic cell with anode and cathode plates. Because the plates generate flocculants in situ, the cell has the advantages of high activity, easy control, and low sludge production.

[0005] However, compared with traditional flocculation and sedimentation technology, the cost of electroflocculation is relatively high when the removal rate of colloids, heavy metals, COD and other pollutants is the same. Therefore, the application and promotion of electroflocculation technology is limited. How to reduce the cost of electroflocculation has become a key link in its promotion and application. Utility Model Content

[0006] In response to the technical problem of high cost of existing electric flocculation methods, the purpose of the embodiments of the present application is to provide a high-efficiency flocculation electrolysis reaction device, which uses the hydrogen generated in the electrolysis reaction process as fuel and pre-heats the sewage to increase the sewage water temperature, thereby reducing the viscosity of the water and increasing the chance of particle collision in the water body. At the same time, the hydration of colloidal particles is weakened, which promotes colloidal coagulation, improves the removal effect of colloidal, SS, and heavy metal bodies, and achieves the purpose of saving energy and reducing costs.

[0007] To achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a high-efficiency flocculation electrolysis reaction device, an electrolytic cell, in which an anode plate and a cathode plate are spaced apart, including: an oxygen collector covering the anode plate and a hydrogen collector covering the cathode plate are provided in the electrolytic cell, the electrolytic cell is connected to a heater, the heater is connected to a water inlet pipe, the oxygen collector and the hydrogen collector are respectively connected to an oxygen storage tank and a hydrogen storage tank through a first exhaust pipe and a second exhaust pipe, and the hydrogen storage tank and the oxygen storage tank are both connected to the heater.

[0008] In one embodiment, the anode plates and the cathode plates are arranged in a staggered manner, the oxygen collectors and the hydrogen collectors are arranged in a staggered manner, the multiple oxygen collectors are connected through a first connecting pipe, and the multiple hydrogen collectors are connected through a second connecting pipe.

[0009] In one embodiment, the height of the hydrogen collector is higher than that of the oxygen collector, the first connecting pipe is arranged on a side of the oxygen collector, and the second connecting pipe is arranged on a top of the hydrogen collector.

[0010] In one embodiment, the anode plates and the cathode plates are arranged in a staggered manner, each anode plate is covered with an oxygen collector, the hydrogen collector covers all the cathode plates and the oxygen collector, and the height of the hydrogen collector is higher than the height of the oxygen collector.

[0011] In one embodiment, a circulation pipe is provided between the heater and the electrolytic cell, and a circulation pump is provided on the circulation pipe.

[0012] In one embodiment, the hydrogen storage tank is provided with a hydrogen exhaust valve, the oxygen storage tank is provided with an oxygen exhaust valve, the water inlet pipe is provided with a water inlet valve, the first exhaust pipe is provided with an oxygen exhaust valve, and the second exhaust pipe is provided with a hydrogen exhaust valve.

[0013] In one embodiment, the electrolytic cell is provided with a drain pipe, and the drain pipe is provided with a drain valve.

[0014] In one embodiment, the anode plate is made of iron or aluminum.

[0015] The beneficial effects of the high-efficiency flocculation electrolysis reaction device provided in the present application are as follows: by setting up an oxygen collector and a hydrogen collector, the oxygen and hydrogen generated during the electrolysis process are collected and used as fuel for the heater to heat the sewage, thereby saving energy and reducing costs. At the same time, the heated sewage effectively reduces the viscosity of the sewage, increases molecular thermal motion, and improves the removal rate of heavy metals, SS, colloids, and COD, which is more conducive to improving the efficiency of the electric flocculation treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic structural diagram of a first embodiment of a high-efficiency flocculation electrolysis reaction device and an electrolytic cell provided in an embodiment of the present application;

[0018] Figure 2 This is a schematic structural diagram of a second embodiment of the electrolytic cell in the high-efficiency flocculation electrolysis reaction device provided in an embodiment of the present application;

[0019] Figure 3 This is a schematic structural diagram of the third embodiment of the electrolytic cell in the high-efficiency flocculation electrolysis reaction device provided in an embodiment of the present application.

[0020] Among them, the reference numerals in the figures are:

[0021] 1. Electrolyzer; 2. Anode plate; 3. Cathode plate; 4. Oxygen collector; 5. Hydrogen collector; 6. Heater; 7. Water inlet pipe; 8. First exhaust pipe; 9. Second exhaust pipe; 10. Oxygen storage tank; 11. Hydrogen storage tank; 12. First connecting pipe; 13. Second connecting pipe; 14. Circulation pipe; 15. Circulation pump; 16. Hydrogen exhaust valve; 17. Oxygen exhaust valve; 18. Water inlet valve; 19. Oxygen exhaust valve; 20. Hydrogen exhaust valve; 21. Drain pipe; 22. Drain valve; 23. DC power supply. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0023] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0026] Please also refer to Figure 1-3 As shown, a high-efficiency flocculation electrolysis reaction device provided in an embodiment of the present application is now described. The high-efficiency flocculation electrolysis reaction device includes an electrolytic cell 1, a heater 6, a hydrogen storage tank 11, and an oxygen storage tank 10. Among them, an anode plate 2 and a cathode plate 3 are spaced apart in the electrolytic cell 1, and the anode plate 2 and the cathode plate 3 are powered by a DC power supply 23. In this embodiment, an oxygen collector 4 covering the anode plate 2 and a hydrogen collector 5 covering the cathode plate 3 are provided in the electrolytic cell 1. The oxygen collector 4 and the hydrogen collector 5 are used to collect the oxygen and hydrogen generated during the electrolysis process. The electrolytic cell 1 is connected to the heater 6, which is used to heat the sewage to be treated. The heater 6 is connected to a water inlet pipe 7 for the sewage to enter. Oxygen collector 4 and hydrogen collector 5 are connected to oxygen storage tank 10 and hydrogen storage tank 11, respectively, via first exhaust pipe 8 and second exhaust pipe 9, for storing oxygen and hydrogen, respectively. Both hydrogen storage tank 11 and oxygen storage tank 10 are connected to heater 6, a conventional inner-outer sandwich burner with an outer combustion chamber and an igniter, and an inner heating chamber for heating the wastewater. This allows for efficient utilization of the hydrogen and oxygen generated during the electrolysis process, saving costs.

[0027] like Figure 1 As shown, in the first embodiment, multiple anode plates 2 and cathode plates 3 are arranged alternately. Each anode plate 2 is covered with an oxygen collector 4. Adjacent oxygen collectors 4 are connected by a first connecting pipe 12. A hydrogen collector 5 covers all cathode plates 3 and oxygen collectors 4. The height of the hydrogen collector 5 is higher than that of the oxygen collector 4. This facilitates hydrogen collection due to its light weight.

[0028] like Figure 2As shown, in the second embodiment, only one anode plate 2 and one cathode plate 3 are provided in one electrolytic cell 1, and the oxygen collector 4 and the hydrogen collector 5 are arranged in parallel.

[0029] like Figure 3 As shown, in the third embodiment, a plurality of anode plates 2 and cathode plates 3 are arranged alternately in an electrolytic cell 1, and a plurality of oxygen collectors 4 and hydrogen collectors 5 are arranged alternately. The plurality of oxygen collectors 4 are connected via a first connecting pipe 12, and the plurality of hydrogen collectors 5 are connected via a second connecting pipe 13. In this way, the plurality of oxygen collectors 4 are interconnected, which facilitates the discharge of the collected oxygen into the oxygen storage tank 10, and the plurality of hydrogen collectors 5 are interconnected, which facilitates the discharge of the collected hydrogen into the hydrogen storage tank 11. Specifically, the height of the hydrogen collector 5 is higher than that of the oxygen collector 4. The first connecting pipe 12 is arranged on the side of the oxygen collector 4 to connect two adjacent oxygen collectors 4. The second connecting pipe 13 is arranged on the top of the hydrogen collector 5. The second connecting pipe 13 is located above the oxygen collector 4 and is used to connect two adjacent hydrogen collectors 5. The oxygen collector 4 and the hydrogen collector 5 are both rectangular cover structures.

[0030] In this embodiment, a circulation pipe 14 is provided between the heater 6 and the electrolytic cell 1, and a circulation pump 15 is provided on the circulation pipe 14. The circulation pump 15 can circulate the sewage between the heater 6 and the electrolytic cell 1, so that the sewage in the electrolytic cell 1 is circulated and heated. When the sewage temperature reaches the design requirement, the circulation pump 15 is turned off.

[0031] In this embodiment, the hydrogen storage tank 11 is provided with a hydrogen discharge valve 16, and the oxygen storage tank 10 is provided with an oxygen discharge valve 17, for controlling the discharge of hydrogen and oxygen. The water inlet pipe 7 is provided with a water inlet valve 18, the first exhaust pipe 8 is provided with an oxygen exhaust valve 19, and the second exhaust pipe 9 is provided with a hydrogen exhaust valve 20. Each valve is used to control the flow of the corresponding pipe.

[0032] In this embodiment, the electrolytic cell 1 is provided with a drain pipe 21 , and the drain pipe 21 is provided with a drain valve 22 for discharging the treated water.

[0033] In this embodiment, the anode plate 2 is made of iron, aluminum or precious metals, so that heavy metals, SS, colloids and COD in the sewage can be flocculated, precipitated or reacted, thereby being effectively removed.

[0034] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A high-efficiency flocculation electrolysis reaction device, comprising: An electrolytic cell (1) is provided with an anode plate (2) and a cathode plate (3) spaced apart therein, characterized in that an oxygen collector (4) and a hydrogen collector (5) covering the anode plate (2) and the cathode plate (3) are provided in the electrolytic cell (1), respectively, the electrolytic cell (1) is connected to a heater (6), the heater (6) is connected to a water inlet pipe (7), the oxygen collector (4) and the hydrogen collector (5) are respectively connected to an oxygen storage tank (10) and a hydrogen storage tank (11) via a first exhaust pipe (8) and a second exhaust pipe (9), and the hydrogen storage tank (11) and the oxygen storage tank (10) are both connected to the heater (6).

2. The high-efficiency flocculation electrolysis reaction device according to claim 1, characterized in that: The anode plates (2) and the cathode plates (3) are arranged in a staggered manner, the oxygen collectors (4) and the hydrogen collectors (5) are arranged in a staggered manner, the multiple oxygen collectors (4) are connected through a first connecting pipe (12), and the multiple hydrogen collectors (5) are connected through a second connecting pipe (13).

3. The high-efficiency flocculation electrolysis reaction device according to claim 2, characterized in that: The height of the hydrogen collector (5) is higher than that of the oxygen collector (4), the first connecting pipe (12) is arranged on the side of the oxygen collector (4), and the second connecting pipe (13) is arranged on the top of the hydrogen collector (5).

4. The high-efficiency flocculation electrolysis reaction device according to claim 1, characterized in that: The anode plates (2) and the cathode plates (3) are arranged in a staggered manner, each anode plate (2) is covered with an oxygen collector (4), the hydrogen collector (5) covers all the cathode plates (3) and the oxygen collector (4), and the height of the hydrogen collector (5) is higher than the height of the oxygen collector (4).

5. The high-efficiency flocculation electrolysis reaction device according to any one of claims 1 to 4, characterized in that: A circulation pipe (14) is provided between the heater (6) and the electrolytic cell (1), and a circulation pump (15) is provided on the circulation pipe (14).

6. The high-efficiency flocculation electrolysis reaction device according to claim 5, characterized in that: The hydrogen storage tank (11) is provided with a hydrogen discharge valve (16), the oxygen storage tank (10) is provided with an oxygen discharge valve (17), the water inlet pipe (7) is provided with a water inlet valve (18), the first exhaust pipe (8) is provided with an oxygen exhaust valve (19), and the second exhaust pipe (9) is provided with a hydrogen exhaust valve (20).

7. The high-efficiency flocculation electrolysis reaction device according to claim 6, characterized in that: The electrolytic cell (1) is provided with a drainage pipe (21), and the drainage pipe (21) is provided with a drainage valve (22).

8. The high-efficiency flocculation electrolysis reaction device according to claim 7, characterized in that: The anode plate (2) is made of iron or aluminum.

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