Electro-catalytic reactor

Abstract

The utility model relates to an electro-catalytic reactor. The electro-catalytic reactor comprises a reaction shell, a power connection sieve tray, an electrode plate and a fixed pull rod, the power connection sieve tray comprises a first power connection sieve tray and a second power connection sieve tray; the first power connection sieve tray and the second power connection sieve tray are respectively positioned at the top end and the bottom end of the reaction shell; the fixed pull rod is vertically placed in the reaction shell; the electrode plate is provided with a reaction liquid channel and a rod perforation channel; the electrode plates are positioned in the reaction shell and penetrate through the rod perforation channels through the fixed pull rods to be fixed; the electrode plates comprise at least two positive electrode plates and at least two negative electrode plates which are parallel to each other and are alternately arranged; the reaction liquid channels on the electrode plates are distributed in a plurality of rows, and the reaction liquid channels of the adjacent positive electrode plates and negative electrode plates are arranged in a staggered manner in the vertical direction. The reactor disclosed by the utility model realizes continuous operation and enlarged production.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrochemistry technical field especially relates to a kind of electrocatalytic reactors. BACKGROUND

[0002] With the development of fine chemical and pharmaceutical intermediates research and development, and the driving of electrochemistry, electrochemical reaction is increasingly widely used in emerging chemical and pharmaceutical research and development fields at present. The electrochemical reaction is usually carried out in a batch reactor on the market, and the structure is that the electrode is inserted into the reaction liquid in the reaction kettle container. The electrode area contacted by the unit volume of reaction liquid is small, the mass transfer rate of the reaction raw material is slow, the reaction rate is slow, and it is a batch reaction, so the yield is low, which is not suitable for scale-up production.

[0003] Another commonly used structure for electrochemical reactors on the market is a micro-channel clamp type, two electrode plates are clamped to form a reaction cavity, which can produce continuously. For example, CN115646388A discloses an electrocatalytic micro-channel reactor, which includes two electrode reaction plates that are mutually cathode and anode. The electrode reaction plate has a reaction channel system that accommodates electrolyte from the outside. The electrocatalytic micro-channel reactor also includes a conductive assembly, a heat exchange assembly, and a connecting assembly. The conductive assembly is used to supply electricity to the electrode reaction plate. The heat exchange assembly is used to exchange heat with the electrode reaction plate. The connecting assembly is used to connect the electrode reaction plate, the conductive assembly, and the heat exchange assembly. The electrolyte from the outside is introduced into the reaction channel system. The conductive assembly is in communication with the electrode reaction plate. The reaction channel system is a micro-channel structure type flow channel, which enhances fluid mass transfer. The heat exchange assembly reduces the resistance and increases the current intensity by increasing the temperature of the electrode reaction plate, thereby improving the efficiency of the electrocatalytic reaction. However, in general, the electrode area of the micro-channel clamp type electrochemical reactor only occupies a part of the whole electrode, the utilization rate of the electrode is low, and the relative current density is low. Moreover, as the reaction proceeds, the electrode loss makes the micro-channel mass transfer effect worse, and the replacement cost is high.

[0004] Therefore, it has become an urgent problem to provide an electrocatalytic reactor that has excellent performance, low cost, simple structure, can realize continuous operation, and is easy to scale up production. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model aims to provide an electrocatalytic reactor. The electrocatalytic reactor provided by the utility model has the advantages of excellent performance, low cost, and simple structure, and can realize continuous operation and scale-up production.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model provides an electrocatalytic reactor, which includes a reaction shell, an electricity receiving sieve tray, an electrode plate, and a fixed pull rod.

[0008] The electro-contact sieve includes a first electro-contact sieve and a second electro-contact sieve, which are located at the top and bottom of the reaction shell, respectively.

[0009] The fixing rod is placed vertically inside the reaction shell;

[0010] The electrode plate is provided with a reaction liquid channel and a rod through-hole channel; the electrode plate is located inside the reaction shell and is fixed by the fixing rod passing through the rod through-hole channel;

[0011] The electrode plate includes at least two parallel and alternately arranged positive electrode plates and negative electrode plates;

[0012] The reaction liquid channels on the electrode plates are arranged in several rows, with the direction parallel to the side wall of the reaction shell as the vertical direction. The reaction liquid channels of adjacent positive and negative electrode plates are staggered in the vertical direction.

[0013] As a preferred technical solution of this utility model, both the first and second electric sieve plates are provided with a sieve hole area and a non-pore area.

[0014] Preferably, both the first and second electrostatic sieves are perpendicular to the sidewall of the reaction shell.

[0015] Preferably, the sieve aperture area includes at least two vertically penetrating holes through the electrically connected sieve disc.

[0016] Preferably, a discharge port is provided above the sieve hole area of ​​the first electrically connected sieve plate on the side away from the reaction shell.

[0017] Preferably, a feed inlet is provided below the sieve hole area of ​​the second electrostatic sieve plate on the side away from the reaction shell.

[0018] As a preferred embodiment of this invention, the electrocatalytic reactor further includes a sealed electrical connection column.

[0019] Preferably, the sealing electrode post includes a first sealing electrode post and a second sealing electrode post, wherein the first sealing electrode post is located above the side of the first electrode sieve disk away from the reaction shell, and the second sealing electrode post is located below the side of the second electrode sieve disk away from the reaction shell.

[0020] As a preferred technical solution of this utility model, the first sealing electrical contact post is vertically fixed above the surface of the non-porous area of ​​the first electrical contact screen by a first sealing ring.

[0021] In this invention, the bottom of the lower end of the first sealing electrode contactes the upper surface of the first electrode sieve on the side away from the reaction shell. The first sealing ring surrounds the bottom side of the first sealing electrode. While ensuring that the first sealing electrode is energized, it can prevent the reaction liquid from directly contacting the first sealing electrode during the outflow process, and prevent the reaction liquid from reacting on the non-electrode metal, thereby generating electrochemical impurities.

[0022] Preferably, the second sealing electrode post is vertically fixed below the surface of the non-porous area of ​​the second electrode screen by a second sealing ring.

[0023] In this invention, the top of the upper end of the second sealing electrode contactes the lower surface of the first electrode sieve on the side away from the reaction shell. The second sealing ring surrounds the top side of the first sealing electrode. While ensuring that the second sealing electrode is energized, it avoids direct contact between the reaction liquid and the second sealing electrode during the inflow process, and prevents the reaction liquid from reacting on the non-electrode metal, thereby generating electrochemical impurities.

[0024] Preferably, the first sealing ring and the second sealing ring are independently selected from axial O-rings.

[0025] As a preferred technical solution of this utility model, the first electric contact screen, the first sealed electric contact post and the discharge port are fixed to the upper end of the reaction shell by a first fixing component.

[0026] Preferably, the second electrostatic sieve, the second sealed electrostatic post, and the feed inlet are fixed to the lower end of the reaction shell by a second fixing component.

[0027] As a preferred technical solution of this utility model, the fixing rod is vertically fixed between the first electric sieve plate and the second electric sieve plate, and is parallel to the side wall of the reaction shell.

[0028] This utility model does not specify the fixing method of the fixing rod, including but not limited to the upper and lower ends of the fixing rod being fastened between the first and second electric screen plates by nuts. Those skilled in the art can choose according to their needs.

[0029] Preferably, the number of fixed tie rods is two or more, such as two, three, four, five or six.

[0030] This invention does not specifically limit the positional relationship between the fixing rods, but only ensures that the fixing rods pass through the rod through-hole channels on the electrode plates, so as to stably fix the positive electrode plates and negative electrode plates that are parallel to each other and alternately arranged.

[0031] As a preferred embodiment of this invention, the electrode plate is perpendicular to the side wall of the reaction shell and parallel to the first and second electro-contact sieves.

[0032] Preferably, the electrode plates are arranged at equal intervals in the vertical direction, with the direction parallel to the sidewall of the reaction shell as the vertical direction.

[0033] Preferably, the reaction liquid channel and the rod perforation channel provided on the electrode plate both penetrate vertically through the electrode plate.

[0034] As a preferred technical solution of this utility model, with the direction parallel to the side wall of the reaction shell as the vertical direction, the rod perforation channels of adjacent positive electrode plates and negative electrode plates are correspondingly arranged in the vertical direction.

[0035] In this invention, "the corresponding arrangement of the rod through-hole channels of adjacent positive and negative electrode plates in the vertical direction" means that the rod through-hole channels on any layer of positive and negative electrode plates are arranged in the same position, so that the vertically placed fixing rod can pass through all the alternately arranged positive and negative electrode plates at the same time, thereby achieving the fixing of the positive and negative electrode plates.

[0036] Preferably, the number of rod through-hole channels in the positive electrode plate and the negative electrode plate is the same as the number of fixed pull rods.

[0037] As a preferred embodiment of this invention, a gap is provided between the electrode plate and the side wall of the reaction shell.

[0038] In this invention, a gap is provided between the electrode plate and the side wall of the reaction shell to facilitate the overall disassembly and replacement of the electrode plate.

[0039] Preferably, with the direction perpendicular to the sidewall of the reaction shell as the horizontal direction, the horizontal straight-line distance between the electrode plate and the sidewall of the reaction shell is less than 0.5 mm, such as 0.5 mm, 0.45 mm, 0.4 mm, 0.35 mm, 0.3 mm, 0.25 mm, 0.2 mm, 0.15 mm or 0.1 mm.

[0040] As a preferred embodiment of this invention, a heat exchange jacket is also fitted over the outside of the reaction shell.

[0041] Preferably, the upper end of the heat exchange jacket is provided with a heat exchange medium outlet.

[0042] Preferably, the lower end of the heat exchange jacket is provided with a heat exchange medium inlet.

[0043] Compared with the prior art, the present invention has at least the following beneficial effects:

[0044] The electrocatalytic reactor provided by this utility model has electrode plates fixed by fixed tie rods inside the reaction shell. The electrode plates are composed of several parallel and alternating positive and negative electrode plates. The parallel and alternating arrangement of the positive and negative electrode plates can make the electric field distribution in the reactor more uniform. The reaction liquid channels in the positive and negative electrode plates are distributed in several rows, which can increase the surface area of ​​the electrode plates and increase the contact area between the reaction liquid and the electrode plates in the same volume. The reaction liquid channels of adjacent positive and negative electrode plates are staggered, which can form a baffle state when the reactants flow inside the reaction shell, enhancing the mass transfer effect. The design of the electrode plates is combined with the electric contact sieves set at the upper and lower ends of the reaction shell to realize continuous electrocatalytic oxidation-reduction reaction operation and scale up production, improving the effect of large-scale electrocatalytic reaction. The designed reactor has a simple structure and low assembly cost. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the main structure of the electrocatalytic reactor provided by this utility model.

[0046] Figure 2 This is a top view schematic diagram of the distribution of the perforated area and the non-perforated area in the electric sieve plate provided by this utility model.

[0047] Figure 3 This is a cross-sectional structural diagram of the first electric contact screen, the first sealed electric contact post, and the discharge port provided by this utility model, which are fixed by the first flange.

[0048] Figure 4 This is a cross-sectional structural diagram of the second electrical contact screen, the second sealing electrical contact post, and the feed inlet fixed by the second flange provided by this utility model.

[0049] Figure 5 This is a top view schematic diagram of the distribution of the reaction liquid channel and the rod perforation channel in the positive electrode plate of this utility model.

[0050] Wherein, 1, reaction shell; 2, first electrostatic sieve plate; 3, second electrostatic sieve plate; A, sieve hole area; B, non-porous area; 4, first sealing electrostatic post; 5, second sealing electrostatic post; 6, discharge port; 7, inlet port; 8, fixed tie rod; 9, electrode plate; 9-1, reaction liquid channel; 9-2, rod perforation channel; 10, heat exchange jacket; 11, heat exchange medium inlet; 12, heat exchange medium outlet; 13-1, first sealing ring; 13-2, second sealing ring; 14-1, first flange; 14-2, second flange. Detailed Implementation

[0051] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. However, the following examples are merely simplified examples of this utility model and do not represent or limit the scope of protection of this utility model. The scope of protection of this utility model is determined by the claims.

[0052] It should be understood that in the description of this utility model, the terms "upper," "lower," "inner side," "outer side," "middle position," "top," "bottom," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. The terms "first," "second," etc., do not indicate the importance of the components and therefore should not be construed as limitations on this utility model. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the scope of protection of this utility model.

[0053] Example 1

[0054] The electrocatalytic reactor provided in this embodiment has the following main view structural schematic diagram: Figure 1 As shown, it includes a reaction shell 1, an electric sieve plate, a sealed electric column, a discharge port 6, a feed port 7, a fixed tie rod 8, an electrode plate 9, a heat exchange jacket 10, a heat exchange medium inlet 11, and a heat exchange medium outlet 12.

[0055] The electrostatic sieve includes a first electrostatic sieve 2 and a second electrostatic sieve 3. Both the first electrostatic sieve 2 and the second electrostatic sieve 3 are perpendicular to the side wall of the reaction shell 1 and are placed at the top and bottom of the reaction shell 1, respectively. The first electrostatic sieve 2 and the second electrostatic sieve 3 have the same structure, each having a sieve hole area A and a non-porous area B. The sieve hole area A includes 48 evenly arranged and vertically penetrating holes in the electrostatic sieve, as shown in the top view diagram. Figure 2 As shown, a discharge port 6 is provided above the sieve hole area A in the first electric sieve plate 2 on the side away from the reaction shell 1, and a feed port 7 is provided below the sieve hole area A in the second electric sieve plate 3 on the side away from the reaction shell 1.

[0056] The sealed electrical connection includes a first sealed electrical connection 4 and a second sealed electrical connection 5. The first sealed electrical connection 4 is located above the side of the first electrical connection screen 2 away from the reaction shell 1, and the second sealed electrical connection 5 is located below the side of the second electrical connection screen 3 away from the reaction shell 1. The first sealed electrical connection 4 is vertically fixed above the surface of the non-porous area B of the first electrical connection screen 2 by a first sealing ring 13-1. The first electrical connection screen 2, the first sealed electrical connection 4, and the discharge port 6 are fixed to the upper end of the reaction shell 1 by a first flange 14-1. The specific cross-sectional structural diagram is shown below. Figure 3As shown; the second sealing electrode 5 is vertically fixed below the surface of the non-porous area B of the second electrode sieve 3 by the second sealing ring 13-2. The second electrode sieve 3, the second sealing electrode 5, and the feed inlet 7 are fixed to the lower end of the reaction shell 1 by the second flange 14-2. The specific cross-sectional structure diagram is shown below. Figure 4 As shown; both the first sealing ring 13-1 and the second sealing ring 13-2 are selected from axial O-rings.

[0057] The fixed tie rods 8 are placed vertically inside the reaction shell 1. Four fixed tie rods 8 are set between the first electric sieve plate 2 and the second electric sieve plate 3. The four fixed tie rods 8 are vertically fastened between the first electric sieve plate 2 and the second electric sieve plate 3 by nuts, and all of them are parallel to the side wall of the reaction shell 1. Electrode plates 9 are located inside the reaction shell 1 and fixed by fixing rods 8. Electrode plates 9 include 17 parallel, equally spaced, alternating positive and negative electrode plates. The electrode plate 9 closest to the first electro-sieving plate 2 is the positive electrode plate. Electrode plates 9 are perpendicular to the side wall of the reaction shell 1 and parallel to the upper and lower surfaces of the first and second electro-sieving plates 2 and 3, with the direction parallel to the side wall of the reaction shell 1 as the vertical direction. Each electrode plate 9 has 36 reaction liquid channels 9-1 and four rod perforation channels 9-2 vertically penetrating it. The reaction liquid channels 9-1 on the electrode plates 9 are arranged in four equally spaced rows. The four rows of reaction liquid channels 9-1 on adjacent positive and negative electrode plates are staggered vertically. A top view of the distribution of the 36 reaction liquid channels 9-1 and four rod perforation channels 9-2 in the positive electrode plate is shown below. Figure 5 As shown ( Figure 5 The white circles in the diagram represent reaction liquid channels 9-1, and the gray circles represent rod perforation channels 9-2. Taking the four rod perforation channels 9-2 on an electrode plate as vertices, the lines connecting them form a rectangle. The rod perforation channels 9-2 of adjacent positive and negative electrode plates are correspondingly arranged in the vertical direction. Four fixing rods 8 pass through the four corresponding rod perforation channels 9-2 on each layer of electrode plate 9 to fix the electrode plate 9. There is a gap between the electrode plate 9 and the side wall of the reaction shell 1. With the direction perpendicular to the side wall of the reaction shell 1 as the horizontal direction, the horizontal straight-line distance between the electrode plate 9 and the side wall of the reaction shell 1 is 0.5 mm.

[0058] A heat exchange jacket 10 is also provided outside the reaction shell 1. The lower end of the heat exchange jacket 10 is provided with a heat exchange medium inlet 11, and the upper end of the heat exchange jacket 10 is provided with a heat exchange medium outlet 12.

[0059] In this embodiment, the electrocatalytic reactor operates with the reaction liquid entering through the feed inlet 7 at the bottom. It first reaches the sieve area A of the second electrostatic sieve plate 3 at the lower end of the reaction shell 1, then enters the interior of the reaction shell 1 through sieve area A. Next, it contacts the positive and negative electrode plates through the reaction liquid channels 9-1 in the parallel and alternating positive and negative electrode plates. The reaction liquid flows in a bottom-to-top baffled state within the reaction shell 1, enhancing the mass transfer effect. After the electrocatalytic reactor is filled with reaction liquid, the first sealed electrostatic column 4 and the second sealed electrostatic column 5, which are parallel and equally spaced, are energized. The positive and negative electrode plates form a uniform electric field inside the reaction shell 1, which performs an electrocatalytic oxidation-reduction reaction on the reaction liquid. The reaction liquid after the reaction flows out through the sieve area A in the first electrostatic sieve plate 2 to the discharge port 6, and finally the reaction products obtained from the reaction are collected at the discharge port 6. In this process, a heat exchange medium is also used to enter the heat exchange jacket 10 from the heat exchange medium inlet 11 set at the lower end of the heat exchange jacket 10 in the reactor, flow through the heat exchange jacket 10, and then discharge through the heat exchange medium outlet 12 set at the upper end of the heat exchange jacket 10, so as to perform heat exchange and cooling inside the reaction shell 1, remove the heat generated by the electrodes and the heat released by the reaction, which is conducive to the continuous reaction.

[0060] In this embodiment, the reaction liquid in the electrocatalytic reactor enters from the bottom and exits from the top, which is beneficial for the removal of reaction gas and increases turbulence. The reaction liquid of the electrocatalytic oxidation-reduction reaction using the reactor provided in this embodiment reacts more fully, without the generation of impurities, and the reaction effect is excellent. Furthermore, the structural design of this reactor enables continuous operation and scale-up production in a limited space.

[0061] Example 2

[0062] The electrocatalytic reactor provided in this embodiment, except for omitting the first sealing ring 13-1 and the second sealing ring 13-2 of the axial O-ring, is the same as in Embodiment 1. It is constructed by setting threaded structures on both the first flange 14-1 and the first sealing electrode 4, so that the first sealing electrode 4 is vertically fixed above the surface of the non-porous area B of the first electrode sieve 2. It is also constructed by setting threaded structures on the second flange 14-2 and the second sealing electrode 5, so that the second sealing electrode 5 is vertically fixed below the surface of the non-porous area B of the second electrode sieve 3.

[0063] The reactor provided in this embodiment can still achieve continuous electrocatalytic oxidation-reduction reaction of the reaction liquid. However, since the first and second sealing rings of the axial O-ring are omitted in this embodiment, the reaction liquid will leak through the gaps in the holes of the sealing electrode post and come into contact with non-electrode metals, thereby generating electrochemical impurities and affecting the purity of the reaction products. Furthermore, if the sealing rings are omitted for fixation and a threaded structure is used for fixation, disassembly will be inconvenient.

[0064] Example 3

[0065] The electrocatalytic reactor provided in this embodiment is the same as that in Embodiment 1, except that the heat exchange jacket 10 installed outside the reaction shell 1, as well as the heat exchange medium inlet 11 and the heat exchange medium outlet 12 are omitted.

[0066] The reactor provided in this embodiment can still achieve continuous electrocatalytic oxidation-reduction reaction of the reaction liquid. However, due to the lack of a heat exchange jacket on the outside of the reaction shell, the reaction liquid cannot be cooled during the electrocatalytic oxidation-reduction reaction process, resulting in abnormal reaction selectivity and an increase in the collected by-products.

[0067] Example 4

[0068] The electrocatalytic reactor provided in this embodiment is the same as in Embodiment 1, except that it has a positive electrode plate set only on the side above the reaction shell 1 near the first electro-contact sieve 2, and a negative electrode plate set on the side below the reaction shell 1 near the second electro-contact sieve 3.

[0069] The electrocatalytic reactor provided in this embodiment has a positive electrode plate on the side of the reaction shell near the first electro-contact sieve and a negative electrode plate on the side of the reaction shell near the second electro-contact sieve. This results in an uneven electric field distribution inside the reaction shell, which prevents the reaction from proceeding normally.

[0070] Comparative Example 1

[0071] The electrocatalytic reactor provided in this comparative example is the same as that in Example 1, except that the reaction liquid channels 9-1 of the positive and negative electrode plates are arranged in a staggered manner in the vertical direction, and the reaction liquid channels 9-1 of the positive and negative electrode plates are arranged in a corresponding manner in the vertical direction. That is, the positions of the reaction liquid channels 9-1 on any adjacent positive and negative electrode plates are the same.

[0072] The electrocatalytic reactor provided in this comparative example uses a method in which the reaction liquid channels of the positive and negative electrode plates are arranged vertically in a corresponding manner. That is, the reaction liquid channels on any adjacent positive and negative electrode plates are arranged in the same position, which leads to a deterioration in the mass transfer effect of the reaction liquid inside the reaction shell and a decrease in the reaction rate.

[0073] Comparative Example 2

[0074] The electrocatalytic reactor provided in this comparative example is identical to that in Example 1, except that the reaction liquid channels 9-1 for the positive and negative electrode plates are omitted.

[0075] The electrocatalytic reactor provided in this comparative example omits the reaction liquid channels on the positive and negative electrode plates, which leads to poorer mass transfer of the reaction liquid and a reduced reaction rate.

[0076] In summary, the electrocatalytic reactor provided by this utility model features electrode plates fixed by tie rods inside the reaction shell. These electrode plates consist of several parallel and alternating positive and negative electrode plates. The parallel and alternating arrangement of the positive and negative plates ensures a more uniform electric field distribution within the reactor. The reaction liquid channels within the positive and negative electrode plates are arranged in several rows, increasing the surface area of ​​the electrode plates within the same volume and thus increasing the contact area between the reaction liquid and the electrode plates. Furthermore, the staggered arrangement of the reaction channels on adjacent positive and negative electrode plates creates a baffled flow state as the reactants flow within the reaction shell, enhancing mass transfer. The design of the electrode plates, combined with the electrostatic sieves at the upper and lower ends of the reaction shell, enables continuous electrocatalytic oxidation-reduction reaction operation and allows for scale-up production, improving the efficiency of large-scale electrocatalytic reactions. The designed reactor has a simple structure and low assembly cost.

[0077] The applicant declares that the above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. An electrocatalytic reactor, characterized in that, The electro-catalytic reactor comprises a reaction shell, an electricity-connection sieve disc, an electrode plate and a fixed pull rod; The electricity-connection sieve disc comprises a first electricity-connection sieve disc and a second electricity-connection sieve disc, which are respectively located at the top end and the bottom end of the reaction shell; The fixed pull rod is vertically placed inside the reaction shell; The electrode plate is provided with a reaction liquid channel and a rod perforation channel; the electrode plate is located inside the reaction shell and is fixed by the fixed pull rod through the rod perforation channel; The electrode plate comprises at least two positive electrode plates and negative electrode plates which are parallel to each other and arranged alternately; The reaction liquid channels on the electrode plate are distributed in several rows, and the direction parallel to the side wall of the reaction shell is the vertical direction; the reaction liquid channels of adjacent positive electrode plates and negative electrode plates are arranged in a staggered manner in the vertical direction.

2. The electro-catalytic reactor of claim 1, wherein, The first electricity-connection sieve disc and the second electricity-connection sieve disc are both provided with a sieve hole area and a non-hole area; The first electricity-connection sieve disc and the second electricity-connection sieve disc are both perpendicular to the side wall of the reaction shell; The sieve hole area comprises at least two hole channels which vertically penetrate the electricity-connection sieve disc; The sieve hole area in the first electricity-connection sieve disc is provided with a discharge port above the side away from the reaction shell; The sieve hole area in the second electricity-connection sieve disc is provided with a feeding port below the side away from the reaction shell.

3. The electro-catalytic reactor of claim 2, wherein, The electro-catalytic reactor further comprises a sealed electricity-connection column; The sealed electricity-connection column comprises a first sealed electricity-connection column and a second sealed electricity-connection column, the first sealed electricity-connection column is located above the side of the first electricity-connection sieve disc away from the reaction shell, and the second sealed electricity-connection column is located below the side of the second electricity-connection sieve disc away from the reaction shell.

4. The electro-catalytic reactor of claim 3, wherein, The first sealed electricity-connection column is vertically fixed above the surface of the non-hole area of the first electricity-connection sieve disc by a first sealing ring; The second sealed electricity-connection column is vertically fixed below the surface of the non-hole area of the second electricity-connection sieve disc by a second sealing ring; The first sealing ring and the second sealing ring are independently selected from an axial O-shaped sealing ring.

5. The electro-catalytic reactor according to claim 4, characterized in that, The first electricity-connection sieve disc, the first sealed electricity-connection column and the discharge port are fixed at the upper end of the reaction shell by a first fixing component; The second electricity-connection sieve disc, the second sealed electricity-connection column and the feeding port are fixed at the lower end of the reaction shell by a second fixing component.

6. The electro-catalytic reactor of claim 1, wherein, The fixed pull rod is vertically fixed between the first electricity-connection sieve disc and the second electricity-connection sieve disc, and is parallel to the side wall of the reaction shell; The number of the fixed pull rod is more than two.

7. The electro-catalytic reactor of claim 1, wherein, The electrode plate is perpendicular to the side wall of the reaction shell, and is parallel to the first electricity-connection sieve disc and the second electricity-connection sieve disc; In the direction parallel to the side wall of the reaction shell, the electrode plate is arranged at equal intervals in the vertical direction; The reaction liquid channel and the rod perforation channel on the electrode plate vertically penetrate the electrode plate.

8. The electro-catalytic reactor of claim 1, wherein, In the direction parallel to the side wall of the reaction shell, the rod perforation channels of adjacent positive electrode plates and negative electrode plates are correspondingly arranged in the vertical direction; The number of the rod perforation channels on the positive electrode plate and the negative electrode plate is the same as the number of the fixed pull rod.

9. The electro-catalytic reactor of claim 7, wherein, The electrode plate is provided with a gap from the side wall of the reaction shell; In a direction perpendicular to the side wall of the reaction shell as a horizontal direction, the horizontal straight line distance between the electrode plate and the side wall of the reaction shell is 0.5mm or less.

10. The electro-catalytic reactor of claim 1, wherein, The outside of the reaction shell is further sleeved with a heat exchange jacket; The upper end of the heat exchange jacket is provided with a heat exchange medium outlet; The lower end of the heat exchange jacket is provided with a heat exchange medium inlet.

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