Continuous flow electrochemical equipment

Abstract

The utility model discloses continuous flow electrochemical equipment which comprises an electrochemical cell and a circulating water tank system which are communicated with each other, and further comprises a pipeline system communicated with the electrochemical cell and the circulating water tank system, and the pipeline system comprises a water tank water inlet pipeline and a circulating water inlet pipeline which are communicated with the input end of the circulating water tank system; the water tank water producing pipeline and the circulating return pipeline are communicated with the output end of the circulating water tank system; the electrochemical cell is communicated with one ends, far away from the circulating water tank system, of the circulating water inlet pipeline and the circulating return pipeline. According to the utility model, an alternate circulating buffer water tank operating mechanism is adopted, so that the utilization rate of the electrochemical cell is increased, the reaction efficiency is continuous and stable, and the reaction efficiency of the electrochemical cell is increased in the water flowing process.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochemical equipment, in particular to a continuous flow electrochemical equipment. Background Art

[0002] Electrochemical devices are a class of devices that work by utilizing electrochemical reactions; these devices are used in a wide variety of fields including chemistry, materials science, environmental science, and electrochemical engineering, enabling a wide range of applications such as corrosion testing, battery development, and environmental monitoring.

[0003] Among them, electrochemical COD removal (Chemical Oxygen Demand) mainly involves electrochemical oxidation and electrochemical reduction, as well as electrocoagulation and other technologies; electrochemical oxidation is a direct electrolysis reaction at the anode that loses electrons, causing the organic matter to oxidize and degrade; a challenge of this method is that oxygen evolution will reduce the current efficiency of oxidative degradation of organic matter and increase energy consumption; however, by selecting appropriate electrode materials, this process can be optimized to a certain extent; electrochemical reduction is to obtain electrons at the cathode of the electrolytic cell, or to reduce indirectly, using the redox medium formed during the electrolysis process to remove pollutants.

[0004] However, due to the instability of the influent water quality, the equipment performance may be reduced or malfunction due to the fluctuation of water quality;

[0005] At the same time, there is less disturbance of the liquid in the electrochemical cell, which affects the normal reaction efficiency of the water body, resulting in large water usage and excessive consumption. Utility Model Content

[0006] The purpose of the utility model is to provide a continuous flow electrochemical device in order to achieve continuous and stable reaction and energy saving and environmental protection.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A continuous flow electrochemical device, comprising an electrochemical cell and a circulating water tank system connected to each other, and also comprising a pipeline system connected to the electrochemical cell and the circulating water tank system, wherein the pipeline system comprises:

[0009] A water tank water inlet pipeline and a circulating water inlet pipeline connected to the input end of the circulating water tank system;

[0010] A water tank water production pipeline and a circulating return pipeline connected to the output end of the circulating water tank system;

[0011] The electrochemical cell is connected with a circulating water inlet pipeline and an end of a circulating return pipeline away from a circulating water tank system.

[0012] As a further description of the above technical solution:

[0013] The circulating water tank system includes a first circulating water tank and a second circulating water tank. The first circulating water tank and the second circulating water tank are both provided with pipe openings and manholes that are connected to the water tank water inlet pipeline, the water tank water production pipeline, the circulating return pipeline and the circulating water inlet pipeline.

[0014] As a further description of the above technical solution:

[0015] A main water inlet valve is installed on the main line of the water tank inlet pipeline, a first water inlet automatic valve is installed on the branch line connecting the water tank inlet pipeline with the first circulating water tank, and a second water inlet automatic valve is installed on the branch line connecting the water tank inlet pipeline with the second circulating water tank.

[0016] As a further description of the above technical solution:

[0017] A main water production valve is installed on the main line of the water tank water production pipeline, a first water production automatic valve is installed on the branch line connecting the water tank water production pipeline with the first circulating water tank, and a second water production automatic valve is installed on the branch line connecting the water tank water production pipeline with the second circulating water tank.

[0018] As a further description of the above technical solution:

[0019] A main reflux valve is installed on the main line of the circulation return pipeline, a first reflux automatic valve is installed on the branch line of the circulation return pipeline connected to the first circulation water tank, and a second reflux automatic valve is installed on the branch line of the circulation return pipeline connected to the second circulation water tank.

[0020] As a further description of the above technical solution:

[0021] A main circulation valve is installed on the main line of the circulating water inlet pipeline, a first circulation automatic valve is installed on the branch line connecting the circulating water inlet pipeline with the first circulating water tank, and a second circulation automatic valve is installed on the branch line connecting the circulating water inlet pipeline with the second circulating water tank.

[0022] As a further description of the above technical solution:

[0023] The water tank water production pipeline is connected to the first circulating water tank and the second circulating water tank at a position where an extension pipeline extending to the bottom of the water tank is provided.

[0024] As a further description of the above technical solution:

[0025] The places where the circulating water inlet pipeline is connected with the first circulating water tank and the second circulating water tank are all provided with horizontal pipes extending to the bottom of the water tank.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0027] 1. In the utility model, an alternating circulating buffer water tank operation mechanism is adopted, and at least two water tanks are used to buffer the input and output liquids in the electrochemical cell. When one of the water tanks is undergoing a circulating reaction, the other water tank receives the unreacted liquid and discharges the waste liquid, thereby increasing the utilization rate of the electrochemical cell and making the reaction efficiency continuous and stable. At the same time, the liquid in the electrochemical cell is always circulating with the water tank, thereby increasing the reaction efficiency of the electrochemical cell during the flow of the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The overall structure diagram provided according to the embodiment of the utility model is shown;

[0029] Figure 2 The figure shows a cross-sectional view of the overall structure provided according to an embodiment of the utility model;

[0030] Figure 3 A schematic diagram of a pipeline valve body communication system provided according to an embodiment of the utility model is shown.

[0031] Legend:

[0032] 1. Electrochemical cell; 2. First circulating water tank; 3. Second circulating water tank; 4. Extension pipeline; 5. Manhole; 6. Pipeline system;

[0033] 61. Water tank water inlet pipeline; 611. Main water inlet valve; 612. First water inlet automatic valve; 613. Second water inlet automatic valve;

[0034] 62. Water tank water production pipeline; 621. Main water production valve; 622. First water production automatic valve; 623. Second water production automatic valve;

[0035] 63. Circulation return pipeline; 631. Main return valve; 632. First return automatic valve; 633. Second return automatic valve;

[0036] 64. Circulating water inlet pipeline; 641. Main circulation valve; 642. First circulation automatic valve; 643. Second circulation automatic valve; 7. Horizontal pipe. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] See also Figure 1-3The utility model provides a technical solution: a continuous flow electrochemical device, including an electrochemical cell 1 and a circulating water tank system connected to each other, and also includes a pipeline system 6 connected to the electrochemical cell 1 and the circulating water tank system, and the pipeline system 6 includes:

[0039] A water tank water inlet pipeline 61 and a circulating water inlet pipeline 64 connected to the input end of the circulating water tank system;

[0040] A water tank water production pipeline 62 and a circulation return pipeline 63 connected to the output end of the circulating water tank system;

[0041] The electrochemical cell 1 is connected to the circulating water inlet pipe 64 and the end of the circulating return pipe 63 away from the circulating water tank system;

[0042] Among them, the two input ends of the circulating return pipe 63 connected to the circulating water tank system are both equipped with a water pump, and the input end of the circulating water inlet pipe 64 connected to the electrochemical cell 1 is also equipped with a water pump;

[0043] During operation, the input end of the water tank water inlet pipeline 61 is connected to the external liquid supply pipeline, so that the external liquid supply pipeline supplies liquid to the overall device through the water tank water inlet pipeline 61;

[0044] First, the water tank inlet pipe 61 supplies liquid to the first circulating water tank in the circulating water tank system until the water level in the circulating water tank reaches the rated full position, and then the water tank inlet pipe 61 is closed to supply liquid to the circulating water tank;

[0045] Secondly, the water tank inlet pipe 61 supplies liquid to the second circulating water tank in the circulating water tank system until the water level in the circulating water tank reaches the rated full position, and the liquid supply from the water tank inlet pipe 61 to the circulating water tank is closed and left for standby; at the same time, the circulating water inlet pipe 64 and the circulating return pipe 63 are opened to allow the liquid in the first circulating water tank to circulate with the liquid in the electrochemical cell 1 until it is detected that the liquid in the electrochemical cell 1 no longer meets the reaction conditions;

[0046] The following cycle is performed, the water tank inlet pipe 61 supplies liquid to the Nth circulating water tank in the circulating water tank system (N is greater than or equal to 2), and when N is exceeded, it starts again from the second circulating water tank; until the water level in the circulating water tank reaches the rated full position, the water tank inlet pipe 61 is closed to supply liquid to the circulating water tank, and it is left for standby; the circulating water inlet pipe 64 and the circulating return pipe 63 between the N-1th circulating water tank and the electrochemical cell are opened, and the circulating water inlet pipe 64 and the circulating return pipe 63 between the N-2th circulating water tank and the electrochemical cell are closed, so that the liquid in the N-1th circulating water tank and the liquid in the electrochemical cell 1 circulate, and at the same time, the N-2th circulating water tank discharges the reacted liquid to the outside through the water tank water production pipe 62 and then stops until it is detected that the liquid in the electrochemical cell 1 no longer meets the reaction conditions;

[0047] Finally, when the external fluid supply stops or the external fluid discharge stops during the cycle, or when a parameter error occurs during the execution of the cycle, the entire system stops running.

[0048] Specifically, Figure 1 As shown, the circulating water tank system includes a first circulating water tank 2 and a second circulating water tank 3. The first circulating water tank 2 and the second circulating water tank 3 are both provided with pipe openings and a manhole 5 connected to a water tank water inlet pipeline 61, a water tank water production pipeline 62, a circulating return pipeline 63 and a circulating water inlet pipeline 64;

[0049] Among them, when N=2, N-2 is regarded as reset after one cycle, that is, N-2=N; and in the circulation step, the priority of the water tank water production pipeline 62 to empty the liquid outward is greater than the priority of the water tank water inlet pipeline 61.

[0050] Specifically, Figure 3 As shown, a main water inlet valve 611 is installed on the main line of the water tank water inlet pipeline 61, a first water inlet automatic valve 612 is installed on the branch line connecting the water tank water inlet pipeline 61 and the first circulating water tank 2, and a second water inlet automatic valve 613 is installed on the branch line connecting the water tank water inlet pipeline 61 and the second circulating water tank 3; a main water production valve 621 is installed on the main line of the water tank water production pipeline 62, a first water production automatic valve 622 is installed on the branch line connecting the water tank water production pipeline 62 and the first circulating water tank 2, and a second water production automatic valve 62 is installed on the branch line connecting the water tank water production pipeline 62 and the second circulating water tank 3. 3; A main reflux valve 631 is installed on the main line of the circulation return pipeline 63, a first reflux automatic valve 632 is installed on the branch line connecting the circulation return pipeline 63 and the first circulation water tank 2, and a second reflux automatic valve 633 is installed on the branch line connecting the circulation return pipeline 63 and the second circulation water tank 3; A main circulation valve 641 is installed on the main line of the circulation water inlet pipeline 64, a first circulation automatic valve 642 is installed on the branch line connecting the circulation water inlet pipeline 64 and the first circulation water tank 2, and a second circulation automatic valve 643 is installed on the branch line connecting the circulation water inlet pipeline 64 and the second circulation water tank 3;

[0051] Process details: In the initial state, all valves are closed;

[0052] ① The main water inlet valve 611 and the first water inlet automatic valve 612 are opened, the first circulating water tank 2 is filled to a high liquid level, and the first water inlet automatic valve 612 is closed;

[0053] ② The main reflux valve 631, the first reflux automatic valve 632, the main circulation valve 641, and the first circulation automatic valve 642 are opened, and the water pump is turned on to start circulation, and the liquid to be treated is sent to the electrochemical cell 1 for treatment, entering cycle a; the cycle time is adjusted according to the sampling data of the electrochemical cell 1;

[0054] ③ Open the second water inlet automatic valve 613, fill the second circulating water tank 3 to the high liquid level, and wait for use;

[0055] ④ After cycle a is finished, open the second reflux automatic valve 633 and the second circulation automatic valve 643, close the first reflux automatic valve 632 and the first circulation automatic valve 642, and enter cycle b;

[0056] ⑤ Open the main water production valve 621 and the first water production automatic valve 622, and after the liquid level in the first circulating water tank 2 is drained to the low level, open the second water inlet automatic valve 613, fill the first circulating water tank 2 to the high level, and close the second water inlet automatic valve 613;

[0057] ⑥ After cycle b is finished, open the first reflux automatic valve 632 and the first circulation automatic valve 642, close the second reflux automatic valve 633, the second circulation automatic valve 643 and the first water production automatic valve 622, and enter cycle a;

[0058] ⑦ Open the second water production automatic valve 623, and after the liquid level in the second circulating water tank 3 is drained to the low level, open the second water inlet automatic valve 613, fill the second circulating water tank 3 to the high level, and close the second water inlet automatic valve 613;

[0059] The cycle is repeated until the system stops after cycle a or cycle b is completed.

[0060] Specifically, Figure 2 As shown, the water tank water production pipeline 62 is connected with the first circulating water tank 2 and the second circulating water tank 3 at the connection point, and the extension pipeline 4 extending to the bottom of the water tank is provided; the circulating water inlet pipeline 64 is connected with the first circulating water tank 2 and the second circulating water tank 3 at the connection point, and the horizontal pipe 7 extending to the bottom of the water tank is provided;

[0061] Among them, the extension pipeline 4 and the horizontal pipe 7 are both used to extract the liquid at the bottom of the inner cavity of the circulating water tank system, reducing the possibility of liquid accumulation inside the circulating water tank system. At the same time, the extension pipeline 4 and the horizontal pipe 7 are installed with pressure pump devices for extracting liquid.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A continuous flow electrochemical device, comprising an electrochemical cell (1) and a circulating water tank system interconnected with each other, characterized in that: It also includes a pipeline system (6) connected to the electrochemical cell (1) and the circulating water tank system, and the pipeline system (6) includes: A water tank water inlet pipeline (61) and a circulating water inlet pipeline (64) connected to an input end of a circulating water tank system; A water tank water production pipeline (62) and a circulation return pipeline (63) connected to the output end of the circulating water tank system; The electrochemical cell (1) is connected to the circulating water inlet pipeline (64) and the end of the circulating return pipeline (63) away from the circulating water tank system.

2. A continuous flow electrochemical device according to claim 1, characterized in that: The circulating water tank system comprises a first circulating water tank (2) and a second circulating water tank (3), wherein the first circulating water tank (2) and the second circulating water tank (3) are both provided with a pipe opening and a manhole (5) for connecting a water tank water inlet pipeline (61), a water tank water production pipeline (62), a circulating return pipeline (63) and a circulating water inlet pipeline (64).

3. A continuous flow electrochemical device according to claim 2, characterized in that: A main water inlet valve (611) is installed on the main line of the water tank water inlet pipeline (61), a first water inlet automatic valve (612) is installed on the branch line connecting the water tank water inlet pipeline (61) and the first circulating water tank (2), and a second water inlet automatic valve (613) is installed on the branch line connecting the water tank water inlet pipeline (61) and the second circulating water tank (3).

4. A continuous flow electrochemical device according to claim 2, characterized in that: A main water production valve (621) is installed on the main line of the water tank water production pipeline (62), a first water production automatic valve (622) is installed on the branch line connecting the water tank water production pipeline (62) and the first circulating water tank (2), and a second water production automatic valve (623) is installed on the branch line connecting the water tank water production pipeline (62) and the second circulating water tank (3).

5. A continuous flow electrochemical device according to claim 2, characterized in that: A main reflux valve (631) is installed on the main line of the circulation return pipeline (63), a first automatic reflux valve (632) is installed on the branch line connecting the circulation return pipeline (63) and the first circulation water tank (2), and a second automatic reflux valve (633) is installed on the branch line connecting the circulation return pipeline (63) and the second circulation water tank (3).

6. A continuous flow electrochemical device according to claim 2, characterized in that: A main circulation valve (641) is installed on the main line of the circulating water inlet pipeline (64), a first circulation automatic valve (642) is installed on the branch line connecting the circulating water inlet pipeline (64) and the first circulating water tank (2), and a second circulation automatic valve (643) is installed on the branch line connecting the circulating water inlet pipeline (64) and the second circulating water tank (3).

7. A continuous flow electrochemical device according to claim 4, characterized in that: An extension pipeline (4) extending to the bottom of the water tank is provided at the connection point between the water tank water production pipeline (62) and the first circulating water tank (2) and the second circulating water tank (3).

8. A continuous flow electrochemical device according to claim 6, characterized in that: A horizontal pipe (7) extending to the bottom of the water tank is provided at the connection point between the circulating water inlet pipeline (64) and the first circulating water tank (2) and the second circulating water tank (3).

Images