CN116516375A

CN116516375A - Electrolytic tank

Info

Publication number: CN116516375A
Application number: CN202310626485.4A
Authority: CN
Inventors: 陈敏; 陈猛; 戴九松; 秦倩倩; 郭国良; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-08-26
Filing date: 2023-05-30
Publication date: 2023-08-01
Also published as: CN219861606U; CN116555830A; CN220352246U; CN220034149U; CN116730437A; CN116676636A; CN219860740U; CN220351815U; CN220034147U; CN116516374A; CN219861599U; CN220703350U; CN219861597U; CN219861596U; CN219861598U; CN219861594U; CN219861602U; CN219861608U; CN116607171A; CN220351816U

Abstract

The invention discloses an electrolytic tank, which comprises a tank body (1) and a diaphragm (2) arranged in the tank body (1), wherein the diaphragm (2) divides an inner cavity of the tank body (1) into at least two electrode chambers (110), and an electrode plate (3) is arranged in each electrode chamber (110), and is characterized in that: at least one of the electrode chambers (110) is provided with an insulating screen (4) for separating adjacent diaphragms (2) and electrode plates (3), and the insulating screen (4) is provided with a plurality of meshes (411) for fluid to pass through. Compared with the prior art, the electrolytic cell can avoid dry burning, accelerating exhaust, inhibiting scale deposition and accelerating ion transfer caused by the contact of the diaphragm with the electrode plate.

Description

Electrolytic tank

Technical Field

The invention relates to the technical field of electrolysis equipment, in particular to an electrolysis bath.

Background

The electrolytic cell consists of a cell body, an anode and a cathode, and an ion exchange membrane (also called a diaphragm) is used for separating the anode chamber from the cathode chamber. The electrolyte is divided into three types, namely an aqueous solution electrolytic tank, a molten salt electrolytic tank and a nonaqueous solution electrolytic tank. When the direct current passes through the electrolytic tank, oxidation reaction occurs at the interface between the anode and the solution, and reduction reaction occurs at the interface between the cathode and the solution, so as to prepare electrolytic water.

For example, in chinese patent application No. CN201810264395.4 (publication No. CN108609693 a), a method for preparing acidic water and alkaline water is disclosed, in which salt water is electrolyzed to form cations and anions, which are moved to two poles of an electrolysis electrode respectively, hydrogen ions and highly active chlorine gas are generated from the anode, the chlorine gas is dissolved in water to generate hypochlorous acid and hydrochloric acid solution as acidic water, and hydroxide ions and hydrogen gas are generated from the cathode to form sodium hydroxide solution as alkaline water.

The following problems exist in the existing electrolytic water preparation process:

firstly, the ion exchange membrane is a unique polymer membrane containing ionic groups and having selective permeation capability to cations or anions in solution, has certain flexibility, is long in time, is influenced by air pressure and water pressure, can deform and even contacts an electrode plate to cause dry burning, influences water outlet effect and service life of an electrolytic cell, and particularly has more serious problems in a small electrolytic cell;

secondly, in the electrolysis process, a large amount of bubbles are generated on the cathode and anode plates and accumulated on the electrode plates, the ion exchange membrane and in the water path in the electrolysis tank, so that the voltage required by an electrolysis system is high, the energy consumption is high, the effective electrolysis area is reduced, the electrolysis reaction efficiency is reduced, the pH value of the effluent is low, the water path is blocked, the pH value and the voltage are extremely unstable, the air pressure can further aggravate the deformation of the ion exchange membrane in the middle, and the problems are more serious especially in a small-sized electrolysis tank;

third, OH generated by the cathode (anode) during electrolysis ^- Will be combined with Ca in water ²⁺ 、Mg ²⁺ Scale is generated by the waiting reaction and deposited on the cathode and the ion exchange membrane, which affects the electrolysis effect and the service life of the electrolytic cell;

fourth, in the electrolysis process, ions need to enter the rear of the cathode chamber from the anode chamber through the ion exchange membrane to promote the whole electrolysis reaction, but ions and products are easily accumulated around the electrode plate in the electrolysis reaction process, which is unfavorable for the diffusion and transmission of ions and the uniformity of the products, thereby affecting the electrolysis efficiency and the stability of pH.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide an electrolytic tank capable of avoiding dry burning caused by contact of a diaphragm with an electrode plate aiming at the current state of the art.

The second technical problem to be solved by the invention is to provide an electrolytic cell capable of accelerating exhaust.

The third technical problem to be solved by the invention is to provide an electrolytic tank capable of inhibiting scale deposition.

The fourth technical problem to be solved by the invention is to provide an electrolytic cell capable of accelerating ion transfer.

The technical scheme adopted by the invention for solving the first, second, third and fourth technical problems is as follows: the utility model provides an electrolysis trough, including the cell body and locate the diaphragm in the cell body, the diaphragm with the inner chamber of cell body is separated into two at least electrode rooms, is equipped with electrode slice in every electrode room, its characterized in that: at least one of the electrode chambers is provided with an insulating screen for separating adjacent diaphragms and electrode plates, and the insulating screen is provided with a plurality of meshes for fluid to pass through.

In order to enhance the turbulence effect, the insulating screen has a wavy structure with at least one surface undulating along the length direction. Thus, the directions of the meshes are different, so that water flow, ions, bubbles and the like can pass through all directions of the meshes, the ion transmission can be accelerated, and the turbulence effect is increased.

Preferably, the waveform structure is a triangular wave or a sine wave.

In order to realize the scraping and descaling functions, the insulating separation net can move or deform relative to the tank body, and scraping parts which can be in friction contact with adjacent diaphragms or electrode plates are formed at the wave crests or wave troughs of the insulating separation net.

In order to realize dynamic turbulence, the insulating barrier net can move or deform relative to the tank body.

In order to form dynamic turbulence, the insulating barrier net is an elastic piece which can stretch along the length direction of the insulating barrier net. Because the insulating separation net has the free motion characteristic similar to a spring, the insulating separation net can stretch and freely move under the action of water flow, can accelerate bubble breakage and discharge, promote turbulent flow, improve electrolysis efficiency and stability, and inhibit scale deposition to a certain extent.

In order to realize the expansion and contraction of the insulating spacer net along the length direction, the insulating spacer net is of a foldable wave-shaped structure.

In order to facilitate the processing of the insulating screen, the insulating screen comprises at least two unit strips which are sequentially arranged along the length direction of the insulating screen, the unit strips are provided with the meshes, the odd unit strips are marked as first unit strips according to the arrangement direction, the even unit strips are marked as second unit strips according to the arrangement direction, the first side edge of the former first unit strip is connected with the first side edge of the latter second unit strip, the second side edge of the former second unit strip is connected with the second side edge of the latter first unit strip, and the adjacent two unit strips have included angles and can be opened and closed relatively.

In order to realize the scraping and descaling functions, the folded edges between two adjacent unit strips are provided with scraping parts which can be in friction contact with adjacent diaphragms or electrode plates.

In order to facilitate the free movement of the insulating spacer, the two ends of the insulating spacer along the length direction are free to hang.

Of course, the two ends of the insulating spacer net along the length direction of the insulating spacer net can be fixed relative to the groove body, or the first end of the insulating spacer net along the length direction of the insulating spacer net is fixed relative to the groove body, and the second end of the insulating spacer net is freely suspended. In order to make the best of the action force of water flow for providing the telescopic movement of the insulating separation net, the telescopic direction of the insulating separation net is basically consistent with the flow direction of the water flow in the electrode chamber.

In order to enable the insulating screen to freely swing under the action of water flow to improve the turbulence effect, the insulating screen is a flexible piece, and only one end of the insulating screen is freely suspended, so that the insulating screen freely swings under the action of water flow.

In order to improve the turbulence effect, the first end of the insulating separation net is freely suspended, and the electrolytic tank further comprises a driving mechanism for driving the second end of the insulating separation net to move.

In order to promote the motion range in the limited space and ensure the turbulent flow effect, the insulating screen is an elastic piece which can stretch along the length direction of the insulating screen, and the power output end of the driving mechanism is connected with the second end of the insulating screen so that the second end of the insulating screen moves along the stretching direction of the insulating screen to adjust the stretching degree of the insulating screen.

Of course, the insulating spacer can also be set to be a flat plate, and the flat plate is driven to reciprocate between the diaphragm and the electrode plate through the driving mechanism, so that on one hand, the turbulence effect can be realized by the reciprocating motion of the whole flat plate, and on the other hand, the first end of the flat plate is freely suspended, and can freely swing around the second end under the action of the driving mechanism and water flow.

In order to simplify the structure of the insulating screen, the insulating screen is of a foldable wave-shaped structure.

In order to facilitate the processing of the insulating screen, the insulating screen comprises at least two unit strips which are sequentially arranged along the length direction of the insulating screen, a plurality of meshes for fluid to pass through are formed in the unit strips, the odd unit strips are marked as first unit strips according to the arrangement direction, the even unit strips are marked as second unit strips according to the arrangement direction, the first side edge of the former first unit strip is connected with the first side edge of the latter second unit strip, the second side edge of the former second unit strip is connected with the second side edge of the latter first unit strip, and the adjacent two unit strips are provided with included angles and can be opened and closed relatively. In addition, through setting up insulating net that separates into wave form structure, the direction of mesh is different to rivers, ions, bubble etc. are passed from mesh all around, can accelerate ion transfer, and the vortex effect increases.

In order to realize the driving of the insulating spacer, the free ends of the unit bars positioned at the head part of the insulating spacer are freely suspended;

the driving mechanism comprises

The first end of the pull rod is provided with a fixed rod, and the unit bars positioned at the tail part of the insulating spacer net are limited on the fixed rod; and

and the driving piece is provided with a telescopic rod which can extend and retract along the telescopic direction of the insulating separation net, and the telescopic rod is connected with the second end of the pull rod.

In order to facilitate the installation of the driving mechanism, the service life of the driving piece is prevented from being influenced by electrolyte, the driving piece is installed on the outer side of the groove body, and the pull rod penetrates through the groove body from the first end to the second end and is exposed out of the outer wall of the groove body.

In order to simplify the driving mechanism, the number of the insulating separating nets is at least two, the driving mechanisms are in one-to-one correspondence with the insulating separating nets, and all the driving mechanisms share the same driving piece.

In order to ensure that the insulating barrier net sufficiently disturbs water flow flowing from bottom to top and improve the turbulence effect, the expansion and contraction direction of the insulating barrier net is basically perpendicular to the flow direction of water flow in the electrode chamber.

In order to avoid that the insulating barrier obstructs the waterway, the porosity of the insulating barrier is more than 1%. Preferably, the porosity of the insulating spacer is 40 to 60%. Further, the porosity of the insulating spacer is 50%.

In order to realize the formation of a single diaphragm electrolytic cell, the number of the diaphragms is one, the inner cavity of the cell body is divided into two electrode chambers, the two electrode chambers are respectively marked as a cathode chamber and an anode chamber, the number of the electrode plates is one, the electrode plates are respectively marked as a cathode plate and an anode plate, the cathode plate is arranged in the cathode chamber, and the anode plate is arranged in the anode chamber.

In order to realize the formation of double-diaphragm electrolytic tank, the quantity of diaphragm is two and arranges side by side to with the inner chamber of cell body is separated into two electrode room that are located two diaphragm both sides and is located the intermediate chamber in the middle of two diaphragms, and two electrode rooms are recorded respectively as negative pole room and positive pole room, the quantity of electrode piece is a pair of, is recorded respectively as negative pole piece and positive pole piece, the negative pole piece locate in the negative pole room, the positive pole piece locate in the positive pole room.

In order to facilitate the supply of raw materials and the discharge of electrolyzed water, a first liquid inlet and a first liquid outlet which are communicated with the electrode chambers are arranged at the corresponding groove body parts of each electrode chamber.

Compared with the prior art, the invention has the advantages that:

(1) The insulating separation net with meshes separates the adjacent diaphragm and the electrode plate, so that on one hand, the insulating separation net is separated between the diaphragm and the electrode plate, and dry burning caused by the contact of the diaphragm with the electrode plate can be effectively avoided; on the other hand, the water flow can form local micro-turbulence in the process of passing through the mesh openings, so that the exhaust is accelerated, the deposition of scale is inhibited, and the ion transfer is accelerated;

(2) The insulating separation net is designed into a wave-shaped structure, and the directions of the meshes are different so as to facilitate water flow, ions, bubbles and the like to pass through all directions of the meshes, thereby accelerating the ion transmission and increasing the turbulence effect;

(3) Because the insulating separation net has the free movement characteristic similar to a spring, the insulating separation net can move freely under the action of water flow, can accelerate the bubble to be broken and discharged, promote turbulent flow, improve the electrolysis efficiency and stability, and inhibit scale deposition to a certain extent;

(4) The insulating separation net is arranged as a flexible piece, and only one end of the insulating separation net is freely suspended, so that the insulating separation net can freely swing under the action of water flow to improve the turbulence effect;

(5) The driving mechanism drives the insulating screen to move, so that the movement amplitude of the insulating screen can be improved, and the turbulence effect is improved.

Drawings

FIG. 1 is a schematic perspective view of example 1 of the electrolytic cell of the present invention;

FIG. 2 is an exploded perspective view of the electrolytic cell of FIG. 1;

FIG. 3 is an enlarged view of a portion of the insulating spacer mesh of FIG. 2;

FIG. 4 is a longitudinal cross-sectional view of the electrolytic cell of FIG. 1;

FIG. 5 is a transverse cross-sectional view of example 2 of the electrolytic cell of the invention;

FIG. 6 is a longitudinal cross-sectional view of example 3 of the electrolytic cell of the invention;

FIG. 7 is a schematic view showing the perspective structure of example 4 of the electrolytic cell of the present invention;

FIG. 8 is an exploded perspective view of the electrolytic cell of FIG. 7;

FIG. 9 is a schematic perspective view of the driving mechanism of FIG. 8;

FIG. 10 is a longitudinal cross-sectional view of the electrolytic cell of FIG. 7;

FIG. 11 is an enlarged view of section I of FIG. 10;

FIG. 12 is a transverse cross-sectional view of example 5 of the cell of the present invention.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

Example 1:

as shown in fig. 1 to 4, a first preferred embodiment of the electrolytic cell of the present invention is shown. The electrolytic cell comprises a cell body 1, a diaphragm 2, an electrode plate 3 and an insulating separation net 4.

The groove body 1 is formed by assembling two cover bodies 11 back and forth through fasteners, and a closed inner cavity is formed between the two cover bodies 11 in a surrounding mode; two annular sealing gaskets 12 which are arranged in sequence are arranged between two opposite end surfaces of the two cover bodies 11.

The diaphragm 2 is a cation exchange membrane and is vertically arranged in the inner cavity of the tank body 1, and the periphery of the diaphragm 2 is clamped between the two annular sealing gaskets 12. The number of the diaphragms 2 is one, the inner cavity of the tank body 1 is divided into two electrode chambers 110, the electrode chamber 110 between the front cover 11 and the diaphragms 2 is denoted as a cathode chamber 110a, the electrode chamber 110 between the rear cover 11 and the diaphragms 2 is denoted as an anode chamber 110b, and the lower part and the upper part of each cover 11 are respectively provided with a first liquid inlet 111 and a first liquid outlet 112 which are communicated with the corresponding electrode chamber 110, so that water flow in each electrode chamber 110 flows from bottom to top.

The number of electrode sheets 3 is a pair, respectively designated as a cathode sheet 3a and an anode sheet 3b, the cathode sheet 3a being disposed substantially vertically in front of the cathode chamber 110a, and the anode sheet 3b being disposed substantially vertically in rear of the anode chamber 110 b. The top of each electrode sheet 3 is provided with a conductive column 31, the conductive column 31 passes through the corresponding cover 11 upwards and is exposed out of the top wall of the cover 11, and the conductive columns 31 on the cathode sheet 3a and the anode sheet 3b are respectively used for electrically connecting with the cathode and the anode of an external power supply.

The number of the insulating barriers 4 is two, and the insulating barriers are in one-to-one correspondence with the two electrode chambers 110 and are respectively positioned in the corresponding electrode chambers 110 to separate the adjacent diaphragms 2 and the electrode plates 3.

In this embodiment, the insulating spacer 4 has a foldable triangular wave structure along its length direction, and both ends thereof are suspended freely. Specifically, the insulating spacer 4 is composed of at least two unit bars 41 arranged in sequence in the longitudinal direction, and each unit bar 41 is provided with a plurality of meshes 411 for passing fluid arranged in a matrix, and the porosity of the insulating spacer 4 is 50%. The odd-numbered cell lines 41 are denoted as first cell lines 41a in the arrangement direction, the even-numbered cell lines 41 are denoted as second cell lines 41b in the arrangement direction, the first side edge of the preceding first cell line 41a is connected to the first side edge of the following second cell line 41b, and the second side edge of the preceding second cell line 41b is connected to the second side edge of the following first cell line 41 a.

The insulating spacer 4 has the following functions: firstly, the insulating separation net 4 is separated between the diaphragm 2 and the electrode plate 3, so that dry burning caused by the contact of the diaphragm 2 with the electrode plate 3 can be effectively avoided; secondly, the water flow can form local micro turbulence in the process of passing through the mesh 411, so that the exhaust is accelerated, the deposition of scale is inhibited, and the ion transfer is accelerated; thirdly, for the insulating screen 4 with a triangular wave structure, the directions of the meshes 411 are different so that water flow, ions, bubbles and the like can pass through all directions of the meshes 411, the ion transmission can be accelerated, and the turbulence effect is increased; fourth, the folded edges between the adjacent two unit bars 41 are formed with scraping portions 410 that can be in frictional contact with the adjacent separator 2 or electrode sheet 3, thereby achieving scraping and descaling.

In this embodiment, the insulating screen 4 is made of a material (food-grade) which is resistant to high and low temperatures, strong acid and alkali and has good insulating properties, preferably food-grade teflon. The two adjacent unit strips 41 have an included angle and can be opened and closed relatively, so that the insulating spacer 4 is an elastic member which can stretch in the length direction as a whole, the thickness of the insulating spacer 4 is denoted as H, and H changes along with the stretching process of the insulating spacer 4. Because the insulating separation net 4 has the free motion characteristic similar to a spring, the insulating separation net can stretch and freely move under the action of water flow, can accelerate bubble breakage and discharge, promote turbulent flow, improve electrolysis efficiency and stability, and inhibit scale deposition to a certain extent.

In this embodiment, the length direction of the insulating spacer 4 is vertical, which is substantially consistent with the flow direction of the water flow in the electrode chamber 110, so that the water flow flowing from bottom to top can conveniently provide the acting force of the telescopic movement for the insulating spacer 4 with a triangular wave structure along the vertical direction.

Example 2:

as shown in FIG. 5, a second preferred embodiment of the electrolytic cell of the invention is shown. Compared with embodiment 1, this embodiment is different in that:

in this embodiment, the length direction of the insulating spacer 4 is the left-right direction, which is substantially perpendicular to the flow direction of the water flow in the electrode chamber 110, that is, the insulating spacer 4 has a triangular wave structure along the left-right direction.

Example 3:

as shown in FIG. 6, a third preferred embodiment of the electrolytic cell of the invention is shown. Compared with embodiment 1, this embodiment is different in that:

in this embodiment, the tank body 1 is formed by assembling a frame body 10 and two cover bodies 11 positioned at the front side and the rear side of the frame body 10, and a closed inner cavity is formed by jointly enclosing the two cover bodies 11 and the frame body 10; two annular sealing gaskets 12 which are arranged in sequence are arranged between two opposite end surfaces of each cover body 11 and the frame body 10.

The number of the membranes 2 is two, wherein one membrane 2 is a cation exchange membrane, the periphery of which is sandwiched between two annular gaskets 12 located at the front, and the other membrane 2 is an anion exchange membrane, the periphery of which is sandwiched between two annular gaskets 12 located at the rear. The two diaphragms 2 divide the inner cavity of the tank body 1 into two electrode chambers 110 and one intermediate chamber 100, the electrode chamber 110 between the front cover 11 and the front diaphragm 2 is denoted as a cathode chamber 110a, the electrode chamber 110 between the rear cover 11 and the rear diaphragm 2 is denoted as an anode chamber 110b, and the space between the frame 10 and the two diaphragms 2 is denoted as the intermediate chamber 100. The lower part and the upper part of each cover 11 are respectively provided with a first liquid inlet 111 and a first liquid outlet 112 which are communicated with the corresponding electrode chamber 110, and the lower part and the upper part of the frame 10 are respectively provided with a second liquid inlet 101 and a second liquid outlet 102 which are communicated with the middle chamber 100.

Example 4:

as shown in fig. 7 to 11, a fourth preferred embodiment of the electrolytic cell of the present invention is shown. Compared with embodiment 1, this embodiment is different in that:

in this embodiment the cell further comprises a drive mechanism 5.

The number of the driving mechanisms 5 is one, and the driving mechanisms 5 are in one-to-one correspondence with the electrode chambers 110, and each driving mechanism 5 comprises a pull rod 51 and a driving member 52.

Specifically, the bottom end of the pull rod 51 is provided with a fixing rod 511 extending along the left-right direction, the free end of the unit bar 41 positioned at the head part of the insulating spacer 4 is freely suspended, the unit bar 41 positioned at the tail part of the insulating spacer 4 is hooked on the fixing rod 511 through the mounting part 412, the pull rod 51 passes through the corresponding cover 11 from bottom to top and is exposed out of the top wall of the cover 11, and the pull rod and the corresponding cover 11 are in sealing fit through the sealing ring 512;

the driving element 52 is an electric push rod, is installed at the outer side of the corresponding cover 11, and is provided with a telescopic rod 521 which can extend and retract along the vertical direction, and the telescopic rod 521 is connected with the top end of the pull rod 51; in this embodiment, all the driving mechanisms 5 share the same driving piece 52.

Thus, the driving member 52 is started to drive the telescopic rod 521 to stretch and retract, and the top end of each insulating spacer 4 is driven by the pull rod 51 to move along the stretching direction of the insulating spacer 4, so that the stretching degree of the insulating spacer 4 is adjusted.

Example 5:

as shown in FIG. 12, a second preferred embodiment of the electrolytic cell of the invention is shown. Compared with embodiment 4, this embodiment is different in that:

Taking example 1 as an example, the working principle is as follows: during operation, electrolyte enters the electrode chamber 110 through the first liquid inlet 111, the cathode sheet 3a and the solution interface are subjected to reduction reaction, the anode sheet 3b and the solution interface are subjected to oxidation reaction, so that electrolyzed water is prepared, in the electrolysis process, the insulating screen 4 can stretch out and draw back under the action of water flow and move freely, and firstly, the insulating screen 4 is separated between the diaphragm 2 and the electrode sheet 3, so that dry burning caused by the contact of the diaphragm 2 with the electrode sheet 3 can be effectively avoided; secondly, the mesh 411 of the insulating screen 4 forms local micro-turbulence, and the movement of the insulating screen 4 forms dynamic turbulence, so that the exhaust can be accelerated, the deposition of scale can be inhibited, and the ion transfer can be accelerated; third, the thickness of the insulating spacer 4 is increased in a compressed state so that the scraping portion 410 thereof is in frictional contact with the adjacent separator 2 or electrode sheet 3, thereby realizing a scraping and descaling function for the electrode sheet 3 and the surface of the separator 2.

The invention has the following advantages:

(1) The insulating separation net 4 is added between the diaphragm 2 and the electrode plate 3 to play roles in supporting and isolating the diaphragm 2, the insulating separation net 4 is designed into a dynamic insulating separation net with a triangular wave structure, dynamic turbulence formed by the movement of the insulating separation net 4, local turbulence formed by meshes of the insulating separation net 4 and scraping effect formed by contact wall surfaces during movement are utilized, so that the air bubbles in the electrode plate 3, the diaphragm 2 and a waterway of the electrolytic tank are greatly accelerated to be discharged, and compared with the conventional method for designing an air outlet on the electrolytic tank, the method for accelerating the air discharge needs additional sealing design and other auxiliary air discharge design, has better air discharge effect, simpler structure and controllable cost, and is very suitable for a small-sized electrolytic tank;

(2) The dynamic turbulence formed by the movement of the insulating separation net 4 and the local turbulence formed by the meshes of the insulating separation net 4 are utilized to prevent scale deposition, and the scale removal effect is further realized through the scraping effect of the contact wall surface, compared with the conventional anode-cathode switching scale removal method, the anode-cathode switching scale removal method does not need to have a catalytic coating capable of participating in anode reaction and frequent anode-cathode switching, and has the advantages of lower cost, simple structure, low electric control requirement and ensured service life of the electrode;

(3) The dynamic turbulence formed by the movement of the insulating separation net 4 and the local turbulence formed by the meshes of the insulating separation net 4 are utilized to accelerate the ion diffusion and transfer, and the pH value and the stability of the water outlet are proposed.

Claims

1. The utility model provides an electrolysis trough, including cell body (1) and locate diaphragm (2) in cell body (1), diaphragm (2) with the inner chamber of cell body (1) is separated into two at least electrode room (110), is equipped with electrode piece (3), its characterized in that in every electrode room (110): at least one of the electrode chambers (110) is provided with an insulating screen (4) for separating adjacent diaphragms (2) and electrode plates (3), and the insulating screen (4) is provided with a plurality of meshes (411) for fluid to pass through.

2. The electrolyzer of claim 1 characterized in that: the insulating isolation net (4) has at least one surface with a wavy structure which is undulating along the length direction.

3. An electrolysis cell according to claim 2, wherein: the wave structure is triangular wave or sine wave.

4. A cell according to claim 3, wherein: the insulating separation net (4) can move or deform relative to the groove body (1), and scraping parts (410) which can be in friction contact with adjacent diaphragms (2) or electrode plates (3) are formed at the wave crests or wave troughs of the insulating separation net.

5. The electrolyzer of claim 1 characterized in that: the insulating screen (4) can move or deform relative to the tank body (1).

6. The electrolyzer of claim 5 characterized in that: the insulating separation net (4) is an elastic piece which can stretch along the length direction of the insulating separation net.

7. The electrolyzer of claim 6 characterized in that: the insulating separation net (4) is of a foldable wave-shaped structure.

8. The electrolyzer of claim 7 characterized in that: the insulating screen (4) comprises at least two unit strips (41) which are sequentially arranged along the length direction of the insulating screen, the mesh (411) is formed in the unit strips (41), the odd unit strips (41) are marked as first unit strips (41 a) according to the arrangement direction, the even unit strips (41) are marked as second unit strips (41 b) according to the arrangement direction, the first side edge of the first unit strip (41 a) is connected with the first side edge of the second unit strip (41 b), the second side edge of the second unit strip (41 b) is connected with the second side edge of the first unit strip (41 a), and the two adjacent unit strips (41) are provided with included angles which can be opened and closed relatively.

9. The electrolyzer of claim 8 characterized in that: a scraping part (410) which can be in friction contact with the adjacent diaphragm (2) or the electrode sheet (3) is formed at the edge between the two adjacent unit strips (41).

10. The electrolyzer of claim 6 characterized in that: the two ends of the insulating separation net (4) along the length direction are freely suspended; or (b)

Both ends of the insulating partition net (4) along the length direction are fixed on the groove body (1); or (b)

The first end of the insulating isolation net (4) along the length direction of the insulating isolation net is fixed relative to the groove body (1), and the second end of the insulating isolation net is freely suspended.

11. An electrolysis cell according to claim 10, wherein: the expansion and contraction direction of the insulating screen (4) is basically consistent with the flow direction of water flow in the electrode chamber (110).

12. The electrolyzer of claim 5 characterized in that: the insulating separation net (4) is a flexible piece, and only one end of the insulating separation net is freely suspended, so that the insulating separation net can freely swing under the action of water flow.

13. An electrolysis cell according to claim 12, wherein: the first end of the insulating isolation net (4) is freely suspended, and the electrolytic tank further comprises a driving mechanism (5) for driving the second end of the insulating isolation net (4) to move.

14. An electrolysis cell according to claim 13, wherein: the insulation separation net (4) is an elastic piece which can stretch along the length direction of the insulation separation net, the power output end of the driving mechanism (5) is connected with the second end of the insulation separation net (4), so that the second end of the insulation separation net (4) moves along the stretching direction of the insulation separation net (4) to adjust the stretching degree of the insulation separation net (4).

15. An electrolysis cell according to claim 14, wherein: the insulating separation net (4) is of a foldable wave-shaped structure.

16. An electrolysis cell according to claim 15, wherein: the insulating screen (4) comprises at least two unit strips (41) which are sequentially arranged along the length direction of the insulating screen, a plurality of meshes (411) for fluid to pass through are formed in the unit strips (41), the odd-numbered unit strips (41) are marked as first unit strips (41 a) according to the arrangement direction, the even-numbered unit strips (41) are marked as second unit strips (41 b) according to the arrangement direction, the first side edge of the first unit strip (41 a) is connected with the first side edge of the second unit strip (41 b), the second side edge of the second unit strip (41 b) is connected with the second side edge of the first unit strip (41 a), and the adjacent two unit strips (41) are provided with included angles and can be opened and closed relatively.

17. An electrolysis cell according to claim 16, wherein: the free ends of the unit strips (41) positioned at the head part of the insulating separation net (4) are freely suspended;

the driving mechanism (5) comprises

The first end of the pull rod (51) is provided with a fixed rod (511), and the unit strips (41) positioned at the tail part of the insulating separation net (4) are limited on the fixed rod (511); and

and a driving member (52) having a telescopic rod (521) which is telescopic in the telescopic direction of the insulating spacer (4), the telescopic rod (521) being connected to the second end of the pull rod (51).

18. An electrolysis cell according to claim 17, wherein: the driving piece (52) is arranged on the outer side of the groove body (1), and the pull rod (51) penetrates through the groove body (1) from the first end to the second end and is exposed out of the outer wall of the groove body (1).

19. An electrolysis cell according to claim 17, wherein: the number of the insulating isolation nets (4) is at least two, the driving mechanisms (5) are in one-to-one correspondence with the insulating isolation nets (4), and all the driving mechanisms (5) share the same driving piece (52).

20. An electrolysis cell according to claim 14, wherein: the expansion and contraction direction of the insulating barrier net (4) is basically perpendicular to the flow direction of water flow in the electrode chamber (110).

21. An electrolysis cell according to any one of claims 1 to 20, wherein: the porosity of the insulating separation net (4) is more than 1 percent.

22. An electrolysis cell according to claim 21, wherein: the porosity of the insulating separation net (4) is 40-60%.

23. An electrolysis cell according to any one of claims 1 to 20, wherein: the number of the diaphragms (2) is one, the inner cavity of the groove body (1) is divided into two electrode chambers (110), the two electrode chambers (110) are respectively marked as a cathode chamber (110 a) and an anode chamber (110 b), the number of the electrode plates (3) is one, the electrode plates are respectively marked as a cathode plate (3 a) and an anode plate (3 b), the cathode plate (3 a) is arranged in the cathode chamber (110 a), and the anode plate (3 b) is arranged in the anode chamber (110 b).

24. An electrolysis cell according to any one of claims 1 to 20, wherein: the number of the diaphragms (2) is two, the diaphragms are arranged side by side, the inner cavity of the groove body (1) is divided into two electrode chambers (110) positioned on two sides of the two diaphragms (2) and an intermediate chamber (100) positioned in the middle of the two diaphragms (2), the two electrode chambers (110) are respectively marked as a cathode chamber (110 a) and an anode chamber (110 b), the number of the electrode plates (3) is a pair, the electrode plates are respectively marked as a cathode plate (3 a) and an anode plate (3 b), the cathode plate (3 a) is arranged in the cathode chamber (110 a), and the anode plate (3 b) is arranged in the anode chamber (110 b).

25. An electrolysis cell according to any one of claims 1 to 20, wherein: the groove body (1) corresponding to each electrode chamber (110) is provided with a first liquid inlet (111) and a first liquid outlet (112) which are communicated with the electrode chamber (110).