An electrochemical box with medium uniform flow function

Abstract

The present invention discloses an electrochemical box with a medium uniform flow function, comprising a box, a plurality of electrode plates arranged in the box, a circulating liquid inlet provided at the bottom of the box, a horizontally arranged interception plate provided in the box, each electrode plate being located above the interception plate, and the lower portion of each electrode plate being in contact with the interception plate; a plurality of flow rate control components arranged side by side along the X direction are provided on the interception plate, each flow rate control component being located between any two adjacent electrode plates; each flow rate control component comprising a plurality of medium through holes provided on the interception plate and distributed along the Y direction, the flow rate of each medium through hole being the same, and the sum of the flow rates of all the medium through holes being equal to the flow rate of the circulating liquid inlet. The medium between the two electrode plates is blocked by the flow rate control component, and the suction force of the circulating liquid inlet is "equally distributed", ensuring that the liquid between the electrode plates passes through at the same flow rate, which can both stabilize the treatment process and improve treatment efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of electrochemical sewage treatment, and in particular to an electrochemical box with a medium uniform flow function. Background Art

[0002] Electrochemical sewage treatment technology is a method of treating sewage by using electrochemical reactions. Its principle is to achieve the purpose of pollution removal through oxidation, reduction, flotation, flocculation and other effects produced during the electrolysis of sewage.

[0003] like Figure 6 The figure shows a conventional electrochemical sewage treatment device, which primarily comprises a housing 100, within which are located multiple electrode plates 400 arranged side by side and spaced apart. The multiple electrode plates 400 are arranged in a staggered arrangement of positive and negative electrodes. The housing 100 is also provided with a return pipe 200. During operation, the electrode plates 400 are energized, and the return pipe 200, driven by a water pump 210, repeatedly circulates sewage within the housing 100, in a bottom-in, top-out manner, achieving electrolytic treatment of the sewage.

[0004] The liquid inlet 120 of the reflux pipe is located in the middle of the bottom of the box 100. However, the orifice of the reflux pipe is much smaller than the bottom area of ​​the box, and the electrode plates are arranged side by side in the horizontal direction. This results in different suction forces of the reflux pipe inlet on the liquid between the two matched electrode plates. The medium flow rate between the two matched electrolytic plates is different and seriously uneven. As a result, the water to be treated entering the electrolytic box at different electrode gaps cannot receive equal treatment time and intensity. This problem can only be overcome by extending the treatment time. For this reason, existing electrochemical treatment generally requires 50-120 minutes, which is unacceptable in engineering. Therefore, the current treatment equipment generally suffers from low electrochemical reaction efficiency and slow treatment process. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an electrochemical box with a medium uniform flow function, which solves the problem of low treatment efficiency of electrochemical sewage treatment equipment in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electrochemical box with a medium uniform flow function, comprising a box, a plurality of electrode plates arranged vertically and spaced apart in the X direction, a circulating liquid inlet at the bottom of the box, a horizontally arranged interception plate, and a peripheral side of the interception plate being sealed to the inner wall of the box;

[0007] Each electrode plate is located above the interception plate, and the lower portion of each electrode plate is in contact with the interception plate;

[0008] The interception plate is provided with a plurality of flow rate control components arranged side by side along the X direction, and each flow rate control component is located between any two adjacent electrode plates;

[0009] Each flow rate control component includes a plurality of medium through holes opened on the intercepting plate and distributed along the Y direction. The flow rate of each medium through hole is the same, and the sum of the flow rates of all the medium through holes is equal to the flow rate of the circulating liquid inlet.

[0010] Principle of the present invention:

[0011] According to common sense, the closer the electrode plate is to the circulating liquid inlet, that is, the liquid between the electrode plates located directly above the circulating liquid inlet has a greater suction force, and the fluid flow rate at this position is faster. The fluid suction force away from this position in the horizontal direction is smaller, and the corresponding flow rate is lower. Therefore, there is a large difference in the flow rate between any two adjacent electrode plates.

[0012] The present invention provides a flow rate control component between any two electrode plates used in combination, and each flow rate control component has the same number of multiple medium through holes. The fluid between the two electrode plates used in combination needs to pass through the intercepting plate along the medium through holes and finally enter the circulating liquid inlet. Combined with the same flow rate of each medium through hole, it can ensure that the flow rate between any two electrode plates is equal, and the sum of the flow rates of all medium through holes is equal to the flow rate of the circulating liquid inlet, which is equivalent to distributing the flow rate of the entire circulating liquid inlet to the two electrode plates that are used in combination. The area between the two electrode plates that are used in combination is the same (in this case, the multiple medium through holes between the two cannot be used as the flow area, and the medium through holes are used to block the flow). When the area and flow are equal, according to the flow formula Q=A*V, the liquid can flow at a basically constant speed between many parallel electrode plates, which can not only stabilize the treatment process but also improve the treatment efficiency.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention is based on the existing box body, and an interception plate is set. The installation position of the interception plate and each electrode plate is then utilized. The medium between the two matching electrode plates is blocked by a flow rate control component, and the suction force of the circulating liquid inlet is "evenly divided". The liquid in the gap between each electrode plate is treated with the same time and the same intensity, that is, the uniformity and stability of the liquid treatment in each place in the box body are guaranteed as much as possible, so as to ensure the high efficiency and reliability of the electrochemical reaction, greatly shorten the time of the existing technology, ensure the stability and reliability of the treatment, and make the box body of the present invention have better and more practical engineering value.

[0015] Furthermore, the centers of the plurality of medium through holes on the intercepting plate are distributed in a rectangular array.

[0016] Furthermore, the center distances between any two adjacent dielectric through holes along the X direction and along the Y direction are the same.

[0017] Further, the center of the circulating liquid inlet is taken as the origin of the coordinate, or the center of the circulating liquid inlet is located on the Z axis of the coordinate;

[0018] The area of ​​each dielectric through hole distributed along the Y direction increases in the direction away from the X axis.

[0019] The areas of the dielectric through holes distributed along the X-axis increase in sequence as they move away from the Y-axis.

[0020] Furthermore, the center of any medium through hole is collinearly arranged with the center of the circulating liquid inlet in the vertical direction. The medium through hole is the central hole, and the hole area of ​​the central hole is , the area of ​​the center hole ,

[0021] Wherein, n is the number of medium through holes opened on the intercepting plate, and S is the area of ​​the circulating liquid inlet.

[0022] It should be explained that, since the installation position of the circulating liquid inlet at the bottom of the entire box can be set according to demand, that is, the circulating liquid inlet can be located in the center of the bottom of the box, or at the edge of the bottom of the box, no matter where the circulating liquid inlet is set at the bottom of the box, a corresponding medium through hole must be opened on the intercepting plate according to the installation position of the circulating liquid inlet to ensure that the center line of the medium through hole and the center line of the circulating liquid inlet are collinear, so that the medium through hole is a center hole. For this reason, it can be understood that the position of the center hole is variably set according to the different installation positions of the circulating liquid inlet on the box. Therefore, in theory, the center line of any medium through hole may be collinear with the center line of the circulating liquid inlet, and selected as the center hole. Therefore, the above content is expressed as if the center line of any medium through hole is collinear with the center line of the circulating liquid inlet, then the medium through hole is a center hole.

[0023] In one possible implementation, the distance between the center of the central hole and the center of the circulating fluid inlet is , then the hole area of ​​any other medium through hole is Satisfies the following formula:

[0024] .

[0025] It should be explained that, with the center of the center hole as the origin of the coordinates, the coordinates of the center of any other medium through hole are ( , ,0), the coordinates of the center of the circulating fluid inlet are (0,0,z), then .

[0026] Furthermore, a material guide trough with a constricted opening is provided at the lower part of the box body, and the circulating liquid inlet is located in the middle of the bottom of the material guide trough and communicates with the box body.

[0027] Furthermore, a circulating liquid outlet is provided on the upper portion of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 A top view of the interception plate and the electrode plates of the present invention;

[0030] Figure 3 A top view of the structure of the intercepting plate of the present invention;

[0031] Figure 4 A schematic diagram of the structure of the connection between the intercepting plate and the box body of the present invention;

[0032] Figure 5 A diagram showing the positional relationship between the medium through holes and the circulating liquid inlet of the present invention;

[0033] Figure 6 This is a structural diagram of a sewage electrochemical treatment device in the prior art;

[0034] Figure 7 A specific dimension diagram of an interception plate of the present invention;

[0035] Figure 8 This is a bar chart comparing the results of two groups of experiments in verifying the effect of the present invention;

[0036] Figure 9 This is a line chart comparing the results of two groups of experiments in verifying the effect of the present invention.

[0037] In the figure: box body 100, material guide trough 110, circulating liquid inlet 120, installation frame 130, groove 131, circulation pipe 200, water pump 210, interception plate 300, flow rate control component 310, medium through hole 311, slot 320, electrode plate 400. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] like Figure 1 、 2As shown in Figure 3, an electrochemical box with a medium uniform flow function includes a box 100, a plurality of electrode plates 400 arranged vertically and spaced apart along the X direction are provided in the box 100, a circulating liquid inlet 120 is provided at the bottom of the box 100, a horizontally arranged intercepting plate 300 is provided in the box 100, the peripheral side of the intercepting plate 300 is sealed and connected to the inner wall of the box 100, each electrode plate is located above the intercepting plate 300, and the lower part of each electrode plate 400 is in contact with the intercepting plate 300; a plurality of flow rate control components 310 arranged side by side along the X direction are provided on the intercepting plate 300, and each flow rate control component 310 is respectively located between any two adjacent electrode plates 400; each flow rate control component 310 includes a plurality of medium through holes 311 opened on the intercepting plate 300 and distributed along the Y direction, the flow rate of each medium through hole 311 is the same, and the sum of the flow rates of all the medium through holes 311 is equal to the flow rate of the circulating liquid inlet 120.

[0040] It can be understood that the box body 100 is the entire electrochemical reaction chamber. Since the electrode plate 400 is a rectangular plate structure and each electrode plate 400 is arranged horizontally in the box body 100, in order to facilitate the installation of the electrode plate 400, the box body 100 of the present invention is a rectangular box body 100, and each electrode plate 400 is vertically arranged and installed near the upper middle part of the box body 100. When an electrochemical reaction occurs in the box body 100, the liquid needs to submerge each electrode plate 400.

[0041] To ensure the smooth progress of the electrochemical reaction, the housing 100 is connected to a circulation pipe 200. The liquid inlet of the circulation pipe 200 is located at the bottom of the housing 100, i.e., the circulating liquid inlet 120. The liquid outlet of the circulation pipe 200 is located at the top of the housing 100, i.e., the circulating liquid outlet. A water pump 210 is connected to the circulation pipe 200, which is used to continuously circulate the liquid in the housing 100 in a bottom-out and top-in manner to perform the electrolysis reaction. The sewage treatment process of the housing 100 is to first introduce a certain amount of sewage into the housing 100, and then, through the cooperation of the circulation pipe 200 and the electrode plates 400, electrically treat the fixed volume of sewage in the housing 100. The treated sewage is then discharged from the housing 100, and the housing 100 is then filled with water for further treatment. To this end, the housing 100 also needs to be equipped with a liquid inlet and a liquid discharge pipe. Both the liquid inlet and the liquid discharge pipe are closed during the electrochemical reaction process in the housing 100. Therefore, the liquid inlet and the liquid discharge pipe are arranged according to the needs. To ensure that all treated wastewater can be discharged, the liquid discharge pipe can be arranged at the bottom of the housing 100, or it can be connected to the liquid inlet section of the circulation pipe 200, so that the liquid discharge pipe and the circulation pipe 200 have a liquid inlet.

[0042] Since the area of ​​the circulating liquid inlet 120 is much smaller than the area of ​​the cross-section of the box body 100, and the electrode plates 400 are arranged at intervals in the horizontal direction, the liquid between the electrode plates 400 located directly above the circulating liquid inlet 120 has a greater suction force, and the fluid flow rate at this position is faster. The suction force of the fluid away from this position in the horizontal direction is smaller, and the corresponding flow rate is lower. For this reason, there is a large difference in the flow rate between any two adjacent electrode plates 400, and there is serious concentration polarization and passivation of the electrode plates 400.

[0043] To solve the above problem, it is easy for those skilled in the art to think of increasing the flow rate of the liquid medium between the electrode plates 400. For example, by using a higher-power water pump 210 on the circulation pipe 200, the flow rate of the circulating liquid inlet 120 can be effectively increased. As the overall flow rate increases, the liquid flow rate between each electrode plate 400 will also increase. Therefore, the concentration polarization phenomenon during the electrochemical reaction can be reduced or eliminated and the reaction gas separation can be accelerated, which can well prevent the reaction from being passivated. However, in order to maximize the efficiency of the electrolytic plate, it is necessary to limit the flow rate of the fluid passing through each electrode plate 400, that is, when the relative flow rate between the liquid and the electrode plate 400 in a fixed position reaches 5-10 cm / s, it is the optimal liquid flow rate. For this reason, blindly increasing the liquid flow rate between each electrode plate 400 will reduce the efficiency of the electrode plate 400.

[0044] In the present invention, in combination with the flow blocking principle, an interception plate 300 is set in the box body 100, and the four sides of the interception plate 300 are sealed with the inner wall of the box body 100. Conventional means are used to set the interception plate 300 to the same shape as the cross section of the box body 100, embed the interception plate 300 in the box body 100 and weld it to the inner wall of the box body 100 to achieve a sealed connection between the two. Of course, the box body 100 and the interception plate 300 can also be used. Figure 4 Specifically, an installation frame 130 is provided in the box body 100, and the installation frame 130 is fixed to the inner wall of the box body 100. A groove 131 with a maze structure is provided on the upper surface of the installation frame 130, and a sealing layer is provided in the groove 131. A slot for cooperating with the groove 131 is provided under the intercepting plate 300. The slot and the groove 131 cooperate to realize the sealed connection between the intercepting plate 300 and the box body 100. This method is conducive to the replacement and maintenance of the intercepting plate 300.

[0045] The intercepting plate 300 of the present invention divides the box body 100 into two upper and lower chambers. In order to allow the liquid in the upper chamber to enter the lower chamber, a medium channel needs to be set on the intercepting plate 300. To this end, the present invention provides multiple flow rate control components 310 on the intercepting plate 300. Each flow rate control component 310 is located between two electrode plates 400 used in conjunction with each other, and the flow rate of the liquid between the two electrode plates 400 is limited by the flow rate control component 310.

[0046] Each flow rate control assembly 310 has the same number of multiple dielectric through-holes 311, and the fluid between the two electrode plates 400 used in conjunction needs to pass through the intercepting plate 300 along each dielectric through-hole 311 and finally enter the circulating liquid inlet 120. Combined with the same flow rate of each dielectric through-hole 311, it can ensure that the flow rate between any two electrode plates 400 is equal, and the sum of the flow rates of all dielectric through-holes 311 is equal to the flow rate of the circulating liquid inlet 120. This is equivalent to evenly distributing the flow rate of the entire circulating liquid inlet 120 between the two electrode plates 400 used in conjunction. The area enclosed between any two electrode plates 400 is the same (in this case, the multiple dielectric through-holes 311 between the two cannot be used as the flow area; the dielectric through-holes 311 are used to block the flow). When the area and flow rate are equal, according to the flow formula Q=A*V, it is possible to achieve a substantially uniform flow rate of liquid between the plurality of parallel electrode plates 400, thus avoiding problems caused by uneven liquid flow rates between the electrode plates 400.

[0047] The present invention is based on the existing box body 100, and an interception plate 300 is set. Then, by utilizing the installation position of the interception plate 300 and each electrode plate 400, the medium between each two matching electrode plates 400 is blocked by the flow rate control component 310, and the suction force of the circulating liquid inlet 120 is "equally distributed", thereby ensuring that the liquid between each electrode plate 400 passes through at the same flow rate, ensuring the flow balance between each electrode plate 400, ensuring that the electrochemical reaction continues to maintain high-efficiency processing, and improving the electrochemical reaction processing effect.

[0048] In a possible implementation, the centers of the plurality of medium through holes 311 on the intercepting plate 300 are distributed in a rectangular array.

[0049] As will be appreciated, each media channel needs to be defined on the intercepting plate 300. To ensure the positioning of the media through-holes 311 on the intercepting plate 300, the centers of the multiple media through-holes 311 defined on the intercepting plate 300 are arranged in a rectangular array. Each column of multiple media through-holes 311 serves as the multiple media through-holes 311 of the flow rate control assembly 310, and each column of multiple media through-holes 311 is arranged along the Y-direction.

[0050] When positioning each medium through hole 311, it is only necessary to determine the center position of any medium through hole 311, and then the centers of multiple medium through holes 311 in each column can be positioned according to a specific distance. After the multiple medium through holes 311 in each column are positioned, the positioning of all medium through holes 311 on the intercepting plate 300 can be achieved, so as to facilitate the positioning drilling of each medium through hole 311.

[0051] In a possible implementation, the center distances between any two adjacent dielectric through holes 311 along the X direction and along the Y direction are the same.

[0052] When the centers of the plurality of dielectric through holes 311 on the intercepting plate 300 are distributed in a rectangular array, the center distance between any two adjacent dielectric through holes 311 in each column is equal. At the same time, the center distance between any two adjacent dielectric through holes 311 in each row is equal. However, the center distance between the two dielectric through holes 311 in each column and the center distance between the two dielectric through holes 311 in each row may be equal to or different from each other.

[0053] Since the liquid flow rate between the two matching electrode plates 400 is basically the same, combined with common sense, it can be known that the areas of the multiple dielectric through holes 311 of each flow rate control component 310 must be different. In order to calculate the area of ​​each dielectric through hole 311 and facilitate the opening of each dielectric through hole 311 on the intercepting plate 300, the present invention makes the center distances between any two adjacent dielectric through holes 311 along the X direction and along the Y direction the same, that is, the multiple dielectric through holes 311 on the intercepting plate 300 are evenly distributed on the intercepting plate 300.

[0054] In one possible implementation, the center of the circulating liquid inlet 120 is used as the origin of the coordinate axis, or the circulating liquid inlet 120 is located on the Z axis of the coordinate axis; the area of ​​each medium through hole 311 distributed along the Y direction increases successively toward the direction away from the X axis, and the area of ​​each medium through hole 311 distributed along the X direction increases successively toward the direction away from the Y axis.

[0055] It can be understood that the medium through hole 311 located directly above the circulating liquid inlet 120 is subjected to a greater suction force, and the other medium through holes 311 located around the medium through hole 311 are subjected to a smaller suction force than the medium through hole 311 in the middle, and the suction force of the other medium through holes 311 that are farther away from the medium through hole 311 is smaller. Correspondingly, the greater the suction force, the greater the flow rate, and the flow rate is equal to the product of the flow rate and the hole area. Correspondingly, in order to make the flow rate of each medium through hole 311 the same, it can be determined in combination with different suction force sizes that the smaller the hole area of ​​the medium through hole 311 that is closer to the position directly above the circulating liquid inlet 120, the greater the resistance, and accordingly, the same flow rate of each medium through hole 311 can be achieved.

[0056] Given that the maximum suction force occurs directly above the circulating fluid inlet 120, to facilitate description of the area changes of each dielectric through-hole 311, the present invention uses the center of the circulating fluid inlet 120 as the coordinate origin. The centers of each dielectric through-hole 311 on the intercepting plate 300 are located on a plane above the Z axis. Therefore, the greater the distance between the center of each dielectric through-hole 311 and the center of the circulating fluid inlet 120, the smaller the suction force and the larger the corresponding hole area. Expressed in terms of the X-axis and Y-axis, the area of ​​each dielectric through-hole 311 distributed along the Y-axis increases in a direction away from the X-axis, and the area of ​​each dielectric through-hole 311 distributed along the X-axis increases in a direction away from the Y-axis.

[0057] In a possible implementation, the center of any medium through hole 311 is collinearly arranged with the center of the circulating liquid inlet 120 in the vertical direction. The medium through hole 311 is a central hole, and the hole area of ​​the central hole is , the hole area of ​​the center hole , where n is the number of medium through holes 311 opened on the intercepting plate 300 , and S is the area of ​​the circulating liquid inlet 120 .

[0058] It can be understood that when the circulating liquid inlet 120 is a straight pipe cross section, the flow rate of any cross section along the length of the straight pipe is the same. The position of the center hole can be equivalent to another cross section of the straight pipe. The flow rate on this cross section is equal to the sum of the flow rates at each position. Then the flow rate is divided into multiple streams, which can be regarded as dividing the cross section into multiple parts. However, except for the center hole, the other medium through holes 311 are scattered and cannot be associated with the area of ​​the circulating liquid inlet 120. For this reason, the present invention limits the hole area of ​​the center hole to , where n is the number of medium through holes 311 opened on the intercepting plate 300 , and S is the area of ​​the circulating liquid inlet 120 .

[0059] In a possible implementation, the center of the central hole is taken as the origin of the coordinates, and the coordinates of the centers of any other dielectric through holes 311 are ( , ,0), the coordinates of the center of the circulating liquid inlet 120 are (0,0,z), then .

[0060] According to common sense, the distance from each medium through hole 311 to the center of the circulating liquid inlet 120 is different, and there are different suction forces. The suction force (pressure difference) ) and suction distance The relationship is consistent with the approximate point source model of fluid mechanics, that is, the suction force is inversely proportional to the square of the distance:

[0061]

[0062] It is the distance from the center of the medium through hole 311 on the intercepting plate 300 to the center of the circulating liquid inlet.

[0063] In order to locate the center of each medium through hole 311 as much as possible, Figure 5 As shown, the present invention takes the center of the center hole as the origin of the coordinates, and the center of the corresponding circulating liquid inlet 120 is on the Z axis. The coordinates of the center of any other medium through hole 311 are ( , ,0), the coordinates of the center of the circulating liquid inlet 120 are (0,0,z), then The distance between the center of the center hole and the center of the circulating fluid inlet 120 After the definition, the distance from the center of the other medium through hole 311 to the center of the circulating liquid inlet 120 can be calculated. .

[0064] In one possible implementation, the distance between the center of the central hole and the center of the circulating liquid inlet 120 is , then the hole area of ​​any other medium through hole 311 is Satisfies the following formula:

[0065] ,

[0066] in: is the distance from the center of any other medium through hole 311 to the center of the circulating liquid inlet 120.

[0067] It is known that the flow rates of the various medium through holes 311 are the same and the center hole positioning has been performed. Therefore, based on the data of the center hole, the areas of the other medium through holes 311 need to be determined.

[0068] To ensure that the flow rate of each medium through hole 311 is equal, the following conditions must be met:

[0069]

[0070] in, —No. Area of ​​holes; —No. The flow rate of each hole; —Flow rate of the ith hole.

[0071] According to Bernoulli's equation, flow velocity and pressure difference The relationship is:

[0072]

[0073] in, —Liquid density.

[0074] Therefore, the flow rate of each medium through hole 311 can be obtained as follows:

[0075]

[0076] At the same time, in order to keep the flow rate of the medium through hole 311 constant, it must be:

[0077]

[0078] Right now:

[0079] because , so we get:

[0080]

[0081] Therefore, the area of ​​any dielectric through hole 311 The distance from it to the center of the circulating fluid inlet should be 120 Proportional to:

[0082]

[0083] in, is the proportionality constant.

[0084] Combined according to the center hole area distance

[0085] get:

[0086]

[0087] So we get the constant:

[0088]

[0089] Will Substituting other area formulas, the area of ​​any dielectric through hole 311 can be calculated. Area:

[0090] .

[0091] In a possible implementation, a material guide trough 110 with a constricted opening is provided at the lower portion of the box body 100 , and the circulating liquid inlet 120 is located in the middle of the bottom of the material guide trough 110 and communicates with the box body 100 .

[0092] Combined with the position of the circulating liquid inlet 120 at the bottom of the box body 100, the medium through holes 311 on the intercepting plate 300 can be arranged in a variety of ways. For example, when the circulating liquid inlet 120 is close to the left and right ends and the front and back ends of the bottom of the box body 100, the arrangement of the multiple medium through holes 311 on the intercepting plate 300 is different. Figure 1 As shown, to reduce the difficulty of drilling holes, the present invention provides a material guide trough 110 structure resembling a quadrangular pyramid at the bottom of the housing 100. The bottom of the material guide trough 110 is its center, which also serves as the location of the circulating fluid inlet 120 in this embodiment of the present invention. Therefore, the dielectric through-holes 311 provided on the intercepting plate 300 can be arranged symmetrically about the X-axis, where the center hole is located. Simultaneously, the dielectric through-holes 311 are also arranged symmetrically about the Y-axis, where the center hole is located. Therefore, when calculating the area of ​​each dielectric through-hole 311, it is sufficient to calculate the area of ​​each dielectric through-hole 311 in any one of the four sections separated by the X and Y axes in the coordinate axis. The areas of the other dielectric through-holes 311 can be calculated using a symmetrical layout to obtain the corresponding hole area data.

[0093] Effect verification:

[0094] In the box 100, two structures, one with an interception plate 300 and one without an interception plate 300, were used to verify the efficiency of the electrochemical treatment. The specific process is as follows:

[0095] 1. Calculation of interception plate opening data

[0096] The existing square interception plate is 350mm×350mm in size and has 25 holes evenly distributed on it. The centers of the circles are arranged in a matrix, and the distance between the centers of the holes is 70mm. There is a cross-sectional area of ​​10000mm below the interception plate. 2 The center of the circular suction pipe coincides with the center of the square intercepting plate and is located 80 mm below the intercepting plate.

[0097] According to the calculation formula in the patent description

[0098] ,

[0099] It can be seen that the area of ​​the center hole of the intercepting plate is 400mm 2 , with a radius of 11.29mm.

[0100] According to the relevant description in the patent document, it is only necessary to calculate the area of ​​the holes in any one of the four plates separated by the X-axis and the Y-axis in the coordinate axis. The areas of the other holes can be obtained by using a symmetrical layout to obtain corresponding data.

[0101] Then calculate the area of ​​the holes in the same plate and record them as A2, A3, A4, A5, A6, A7, A8, A9

[0102] The area of ​​the central hole is known to be 400mm 2 , the hole center distance is 70mm, then

[0103] A1=400mm 2 ,

[0104] A2=531.15mm 2 ,

[0105] A3=806.23mm 2 ,

[0106] A4=531.51mm 2 ,

[0107] A5=636.40mm 2 ,

[0108] A6=878.92mm 2 ,

[0109] A7=806.23mm2

[0110] A8=878.92mm 2

[0111] A9=1067.71mm 2

[0112] The interception plate size and opening situation are as follows Figure 7 As shown, there are 25 holes in total, with an opening area of ​​19598.71mm 2 .

[0113] 2. Box structure design

[0114] According to the size of the interception plate, the box size is designed to be 350mm×350mm×350mm. The interception plate is located in the lower part of the box, and the four sides are vertically connected to the four walls of the box. There are 6 electrode plates in total, which vertically divide the box space into 5 parts, of which two electrodes are in contact with the box walls on both sides. The size of each electrode plate is 350mm×350mm×6mm, and the lower part of the electrode plate is in contact with the interception plate. The space between any two electrodes contains a column of openings on the interception plate. A conical liquid collecting tank is provided at the bottom of the box, and the outlet of the liquid collecting tank is a circular suction pipe. The center of the pipe coincides with the center of the interception plate, and the distance is 80mm. The suction pipe is connected to a circulating water pump. It is necessary to ensure that the medium to be treated in the box is circulated at a speed of 5 times / min. The circulating water pump connection pipe is connected to the upper part of the box to realize circulation treatment.

[0115] 3. Experimental design and implementation

[0116] (1) Variable control

[0117] Fixed parameters of electrochemical reaction:

[0118]

[0119] Group design and variable data:

[0120]

[0121] (2) Detection method

[0122] COD: potassium dichromate method (HJ 828-2017);

[0123] (3) Data recording and organization

[0124] 1) Original data record table

[0125]

[0126] 2) Data processing table (mean ± standard deviation)

[0127]

[0128] 3) Visual comparison chart

[0129] like Figure 8 The figure shows a bar chart comparing the time required for different electrolytic boxes to treat sewage under the same standard for the two experiments A1 and A2.

[0130] like Figure 9 The figure shows a line graph comparing the sewage treatment efficiency of different electrolytic boxes under the same standards for the two groups of experiments A1 and A2.

[0131] 4. Comparative Analysis and Discussion

[0132] The data from the above experiments show that, under the same treatment standard (COD = 50 mg / L), the time required to reach the specified standard in the electrolytic tank with interceptor plates was 40 minutes shorter than that in the electrolytic tank without interceptor plates, resulting in an efficiency increase of approximately 78.43%. This indicates that, under the same discharge standard, the electrochemical tank with interceptor plates has higher wastewater treatment efficiency.

[0133] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0134] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0135] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An electrochemical box with a medium uniform flow function, comprising a box (100), wherein a plurality of electrode plates (400) are arranged vertically and spaced apart in the X direction, and a circulating liquid inlet (120) is provided at the bottom of the box (100), characterized in that: A horizontally arranged interception plate (300) is provided in the box body (100), and the circumferential side of the interception plate (300) is sealedly connected to the inner wall of the box body (100); Each electrode plate (400) is located above the interception plate (300), and the lower portion of each electrode plate (400) is in contact with the interception plate (300); The interception plate (300) is provided with a plurality of flow rate control components (310) arranged side by side along the X direction, and each flow rate control component (310) is located between any two adjacent electrode plates (400); Each flow rate control component (310) includes a plurality of medium through holes (311) formed on the intercepting plate (300) and distributed along the Y direction. The flow rate of each medium through hole (311) is the same, and the sum of the flow rates of all the medium through holes (311) is equal to the flow rate of the circulating liquid inlet (120). The center of any medium through hole (311) and the center of the circulating liquid inlet (120) are arranged in a vertical collinear manner. The medium through hole (311) is a central hole, and the hole area of ​​the central hole is , the hole area of ​​the center hole , Wherein, n is the number of medium through holes (311) provided on the interception plate (300), and S is the area of ​​the circulating liquid inlet (120); The distance between the center of the center hole and the center of the circulating fluid inlet (120) is , the distance from the center of any other medium through hole (311) to the center of the circulating liquid inlet (120) is , then the hole area of ​​any other medium through hole (311) Satisfies the following formula: 。 2. The electrochemical box with medium uniform flow function according to claim 1, characterized in that: The centers of the multiple medium through holes (311) on the intercepting plate (300) are distributed in a rectangular array.

3. The electrochemical box with a medium uniform flow function according to claim 2, characterized in that: The center distances between any two adjacent dielectric through holes (311) along the X direction and along the Y direction are the same.

4. The electrochemical box with medium uniform flow function according to claim 3, characterized in that: The center of the circulating liquid inlet (120) is used as the coordinate origin, or the center of the circulating liquid inlet (120) is located on the Z axis of the coordinate; The areas of the dielectric through holes (311) distributed along the Y direction increase in sequence as they move away from the X axis. The areas of the medium through holes (311) distributed along the X direction increase in sequence in the direction away from the Y axis.

5. The electrochemical box with a medium uniform flow function according to claim 1, 2, 3 or 4, characterized in that: A material guide trough (110) with a constricted opening is provided at the lower portion of the box body (100), and a circulating liquid inlet (120) is located in the middle of the bottom of the material guide trough (110) and communicates with the box body (100).

6. The electrochemical box with medium uniform flow function according to claim 5, characterized in that: A circulating liquid outlet is provided on the upper portion of the box body (100).

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