Anode separator and ionic membrane electrolysis unit

Abstract

The utility model relates to the field of chlor-alkali chemical industry, and discloses an anode separator and an ionic membrane electrolysis unit. The anode separator comprises a tank body, an overflow cavity, a mixing cavity and a circulating liquid outlet cavity are formed in the tank body, the mixing cavity is communicated with the circulating liquid outlet cavity through a plurality of flow mixing holes, and a circulating liquid return opening, a strong brine inlet and a circulating liquid outlet are formed in the tank body. According to the anode separator provided by the utility model, return liquid is separated from inlet water of strong brine, so that the strong brine does not enter overflowing light salt brine, the problem of material waste caused by the fact that the strong brine is mixed into the overflowing light salt brine is solved, and a plurality of flow mixing holes play roles in uniformly distributing water and hydraulically stirring; and the mixed solution enters the anode chamber of the electrolytic cell in a more uniform mixed state, so that the electrolytic reaction is more balanced, the running stability of the electrolytic cell is improved, the risk of irreversible damage to the ionic membrane is reduced, and the service life of the ionic membrane is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of chlor-alkali chemical industry, in particular to an anode separator and an ion membrane electrolysis unit. Background Art

[0002] The anode separator of the ion membrane electrolysis unit plays an important role in storing the inlet and outlet liquids of the anode chamber of the electrolyzer, producing brine, separating gas and liquid, and cooperating with the water seal to ensure the stability of the gas pressure in the anode chamber of the electrolyzer.

[0003] At present, when the anode separator is used, the concentrated brine enters the anode separator and mixes with the circulating brine to directly enter the anode chamber of the electrolytic cell for electrolysis reaction. At the same time, the mixed liquid of the concentrated brine and the brine overflows through the overflow port set near the liquid surface of the anode separator to complete the output of the brine. Among them, the overflow pipe plays the role of gas liquid seal when it is filled with the mixed liquid. The anode separator under this design has the following defects:

[0004] (1) After the concentrated brine and the dilute brine are mixed, they overflow from the separator. The concentrated brine overflowing with the dilute brine is discharged without participating in the electrolysis reaction, resulting in material waste and increased operating costs;

[0005] (2) The concentrated brine enters the electrolytic cell to participate in the electrolysis reaction without being evenly mixed with the dilute brine. The uneven medium will cause the overall electrolysis reaction to be unbalanced, thereby affecting the stability of the electrolytic cell operation and having an irreversible adverse effect on the service life of the ion membrane. Utility Model Content

[0006] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides an anode separator and an ion membrane electrolysis unit.

[0007] The utility model provides an anode separator, comprising a tank body, wherein an overflow cavity, a mixing cavity and a circulating liquid outlet cavity are formed in the tank body in sequence in a horizontal direction, wherein the mixing cavity is connected to the circulating liquid outlet cavity through a plurality of mixing holes, and the tank body is provided with:

[0008] A circulating liquid return port, located opposite to the overflow cavity in the vertical direction;

[0009] a concentrated brine inlet, which is opposite to the mixing chamber in the vertical direction; and

[0010] The circulating liquid outlet is communicated with the bottom of the circulating liquid outlet cavity.

[0011] Optionally, the tank body is further provided with an overflow outlet, and the overflow outlet is communicated with the overflow cavity.

[0012] Optionally, an overflow pipe is connected to the overflow outlet, and the outlet end of the overflow pipe is used to connect to a salt water barrel, and the height of the outlet end of the overflow pipe is not lower than the upper edge height of the wall between the overflow cavity and the mixing cavity.

[0013] Optionally, the bottom of the tank body extends upward to form a first partition and a second partition, the height of the first partition and the second partition is less than the height of the tank body, the first partition and the second partition divide the interior of the tank body into the overflow chamber, the mixing chamber and the circulating liquid outlet chamber, and a plurality of mixing holes are formed on the second partition.

[0014] Optionally, the concentrated brine inlet is communicated with the mixing chamber, and the concentrated brine inlet is arranged close to an upper edge of the first partition plate or the second partition plate.

[0015] Optionally, an exhaust port is further provided on the top of the tank body, and the exhaust port is used to communicate with the water seal barrel.

[0016] The utility model also provides an ion membrane electrolysis unit, comprising the above-mentioned anode separator.

[0017] Optionally, the ion membrane electrolysis unit further comprises:

[0018] An ion membrane electrolyzer has an anode liquid outlet and an anode liquid inlet, wherein the anode liquid outlet is connected to the circulating liquid return port via a first pipeline, and the anode liquid inlet is connected to the circulating liquid outlet via a second pipeline, and a circulating pump is provided on the second pipeline;

[0019] The concentrated brine barrel is connected to the concentrated brine liquid inlet through a third pipeline, and a water inlet pump is provided on the third pipeline.

[0020] Optionally, the ion membrane electrolysis unit further comprises a water seal barrel, the tank body is provided with an exhaust port, the exhaust port is connected to the water seal barrel via a fourth pipe, and the end of the fourth pipe extends into the bottom of the water seal barrel.

[0021] Optionally, the ion membrane electrolysis unit also includes a salt water barrel, the tank body is provided with an overflow outlet, the overflow outlet is connected to the salt water barrel through an overflow pipe, and the height of the outlet end of the overflow pipe is not lower than the upper edge height of the wall between the overflow cavity and the mixing cavity.

[0022] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0023] In the anode separator provided by the utility model, an overflow chamber, a mixing chamber and a circulating liquid outlet chamber are arranged at intervals inside the tank body to separate the return liquid and the inlet water of the concentrated brine, and the circulating liquid return port and the overflow chamber are arranged relative to each other, so as to ensure that the overflow chamber is always in a state of full liquid level, and the concentrated brine inlet and the mixing chamber are arranged relative to each other in the vertical direction, so that the concentrated brine does not enter the overflowing dilute brine, thereby solving the problem of material waste caused by the overflowing dilute brine mixing with the concentrated brine, and the circulating liquid outlet is connected with the bottom of the circulating liquid outlet chamber, and the mixing chamber and the circulating liquid outlet chamber are connected through a plurality of mixing holes, and the dilute brine mixed with the concentrated brine is mixed more evenly after passing through the plurality of mixing holes, and the plurality of mixing holes play the role of uniform water distribution and hydraulic stirring, and the mixed liquid enters the anode chamber of the electrolytic cell in a more evenly mixed state, so that the electrolysis reaction is more balanced, the stability of the operation of the electrolytic cell is improved, the risk of irreversible damage to the ion membrane is reduced, and the service life of the ion membrane is prolonged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0025] In order to more clearly illustrate the implementation mode of the utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic structural diagram of the anode separator described in the embodiment of the utility model;

[0027] Figure 2 It is an AA cross-sectional view of the anode separator described in the embodiment of the utility model;

[0028] Figure 3 This is a K-direction schematic diagram of the anode separator described in the embodiment of the utility model;

[0029] Figure 4 This is a schematic structural diagram of the first baffle in an embodiment of the utility model;

[0030] Figure 5 This is a schematic structural diagram of the second baffle in an embodiment of the utility model;

[0031] Figure 6 It is a schematic structural diagram of the ion membrane electrolysis unit described in the embodiment of the utility model.

[0032] Description of Reference Numerals

[0033] 101, concentrated brine barrel; 102, anode separator; 102-A, first baffle; 102-B, second baffle; 102-B-1, mixing hole; 102-Y, overflow cavity; 102-H, mixing cavity; 102-X, circulating liquid outlet cavity; 102-1, circulating liquid return port; 102-2, overflow outlet; 102-3, concentrated brine inlet; 102-4, circulating liquid outlet; 102-5, exhaust port ; 103, ion membrane electrolyzer; 103-1, anode liquid outlet; 103-2, anode liquid inlet; 104, water seal barrel; 105, brine barrel; 201, water inlet pump; 202, circulation pump; 301, first valve; 302, second valve; 303, third valve; 304, fourth valve; 305, fifth valve; 306, sixth valve; 401, overflow pipe; 401-1, outlet end of the overflow pipe. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0035] The following description sets forth many specific details to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the implementation methods in the specification are only part of the implementation methods of the present invention, rather than all of the implementation methods.

[0036] like Figure 1 As shown, the anode separator provided by the embodiment of the utility model includes a tank body, wherein the shape of the tank body is not limited, for example, the tank body can be cylindrical, rectangular or other shapes, and can be designed according to actual needs, and a sealed cavity is formed inside the tank body. The inside of the tank body is formed with an overflow cavity 102-Y, a mixing cavity 102-H and a circulating liquid outlet cavity 102-X arranged in sequence along the horizontal direction, that is, the overflow cavity 102-Y and the mixing cavity 102-H are adjacent, the mixing cavity 102-H and the circulating liquid outlet cavity 102-X are adjacent, and the tops of the overflow cavity 102-Y, the mixing cavity 102-H and the circulating liquid outlet cavity 102-X are connected, so that the fluid in the overflow cavity 102-Y can overflow into the mixing cavity 102-H. The mixing chamber 102-H and the circulating liquid outlet chamber 102-X are connected via a plurality of mixing holes 102-B-1, so that the fluids between the mixing chamber 102-H and the circulating liquid outlet chamber 102-X are interconnected, and when passing through the mixing holes 102-B-1, the mixing holes 102-B-1 play a role in turbulent mixing, thereby ensuring the mixing effect of the fluids.

[0037] Combination Figures 1 to 3As shown, the tank body is provided with a circulating liquid return port 102-1, a concentrated brine inlet 102-3 and a circulating liquid outlet 102-4. The circulating liquid return port 102-1 is opposite to the overflow chamber 102-Y in the vertical direction, so that the refluxed fluid can enter the overflow chamber 102-Y, specifically, the refluxed light brine can enter the overflow chamber 102-Y, so that the light brine in the overflow chamber 102-Y is always in a full state. Among them, the circulating liquid return port 102-1 is set at the top of the tank body, which is convenient for the refluxed light brine to enter the overflow chamber 102-Y. The concentrated brine inlet 102-3 is opposite to the mixing chamber 102-H in the vertical direction. The vertical direction here refers to the axial direction of the tank body, and the relative position here refers to the concentrated brine inlet 102-3, which can be set on the side wall of the tank body or on the top of the tank body, so that the concentrated brine can enter the mixing chamber 102-H. In addition, since the mixing chamber 102-H is adjacent to the overflow chamber 102-Y, and the light brine in the overflow chamber 102-Y is always at a full liquid level, the light brine continuously overflows into the mixing chamber 102-H, and the concentrated brine in the mixing chamber 102-H will not flow into the overflow chamber 102-Y, thereby avoiding the waste of concentrated brine. The circulating liquid outlet 102-4 is connected to the bottom of the circulating liquid outlet cavity 102-X, that is, the circulating liquid outlet 102-4 is arranged at the bottom of the tank body or near the bottom, so that the mixed brine can flow out through the circulating liquid outlet 102-4 located at the bottom of the circulating liquid outlet cavity 102-X, and because the mixing cavity 102-H is connected to the circulating liquid outlet cavity 102-X through multiple mixing holes 102-B-1, the mixed brine will continuously pass through the mixing holes 102-B-1 during the downward flow process to increase the mixing effect of the mixed brine.

[0038] In the anode separator 102 provided by the utility model, an overflow chamber 102-Y, a mixing chamber 102-H and a circulating liquid outlet chamber 102-X are arranged inside the tank body to separate the return liquid and the inlet water of the concentrated brine, and the circulating liquid return port 102-1 is arranged relative to the overflow chamber 102-Y, ensuring that the overflow chamber 102-Y is always in a full liquid state, and the concentrated brine inlet 102-3 and the mixing chamber 102-H are arranged relative to each other in the vertical direction, so that the concentrated brine does not enter the overflowed light brine, thereby solving the problem of material waste caused by the overflowed light brine mixing with the concentrated brine, and the circulating liquid return port 102-1 is arranged relative to the overflow chamber 102-Y, ensuring that the overflow chamber 102-Y is always in a full liquid state, and the concentrated brine inlet 102-3 and the mixing chamber 102-H are arranged relative to each other in the vertical direction, so that the concentrated brine does not enter the overflowed light brine, thereby solving the problem of material waste caused by the overflowed light brine mixing with the concentrated brine, and The liquid outlet 102-4 is connected to the bottom of the circulating liquid outlet cavity 102-X, and the mixing cavity 102-H is connected to the circulating liquid outlet cavity 102-X through a plurality of mixing holes 102-B-1. The light brine mixed with the concentrated brine is mixed more evenly after passing through the plurality of mixing holes 102-B-1. The plurality of mixing holes 102-B-1 play a role in uniform water distribution and hydraulic stirring. The mixed liquid enters the anode chamber of the electrolytic cell in a more evenly mixed state, thereby making the electrolytic reaction more balanced, improving the stability of the electrolytic cell operation, reducing the risk of irreversible damage to the ion membrane, and extending the service life of the ion membrane.

[0039] In some embodiments, in combination Figure 1 and Figure 2 As shown, the tank body is also provided with an overflow outlet 102-2, and the overflow outlet 102-2 is connected to the overflow cavity 102-Y.

[0040] In this design, part of the light salt water flowing into the overflow chamber 102-Y overflows into the mixing chamber 102-H, and the other part is discharged to a designated location through the overflow outlet 102-2.

[0041] In some embodiments, the overflow outlet 102-2 is disposed at or near the bottom of the tank body to increase the smoothness of the outflow of the salt water.

[0042] Due to the traditional multiple overflow setting method, when the gas generated by electrolysis enters the overflow pipe 401 due to the high gas pressure, it is easy to cause gas penetration, causing the overflow pipe 401 to lose its liquid sealing function, resulting in depressurization of the anode chamber of the electrolytic cell, thereby causing "tearing" disturbance to the ion membrane, ultimately affecting the life and operating stability of the ion membrane.

[0043] In this regard, in some embodiments, such as Figure 6As shown, the present application further connects an overflow pipe 401 to the overflow outlet 102-2, and the outlet end 401-1 of the overflow pipe is used to connect to the salt water bucket 105, and the height of the outlet end 401-1 of the overflow pipe is not lower than the upper edge height of the wall between the overflow cavity 102-Y and the mixing cavity 102-H. Among them, the overflow pipe 401 can be set in a "J" shape or a "Z" shape, and can be designed according to actual needs. The wall here is the first partition 102-A described below, that is, the height of the outlet end 401-1 of the overflow pipe is not lower than the upper edge height of the first partition 102-A between the overflow cavity 102-Y and the mixing cavity 102-H.

[0044] In this design, the liquid circulation port 102-1 is set in the overflow chamber 102-Y, which ensures that the overflow chamber 102-Y is always in a full liquid level state. At the same time, the overflow outlet 102-2 is set at the bottom of the tank or near the bottom of the tank, avoiding the risk of the overflow pipe 401 being penetrated by gas and destroying the liquid seal, thereby causing the anode chamber of the electrolytic cell to lose pressure, avoiding the "tearing" disturbance of the ion membrane caused by this reason, extending the service life of the ion membrane, and ensuring the stability of the ion membrane operation.

[0045] In some embodiments, in combination Figure 1 and Figure 2 As shown, the bottom of the tank body extends upward to form a first partition 102-A and a second partition 102-B, that is, the first partition 102-A and the second partition 102-B are arranged in parallel, and the height of the first partition 102-A and the second partition 102-B is less than the height of the tank body, so that the top space of the first partition 102-A and the second partition 102-B are in a connected state, and the first partition 102-A and the second partition 102-B divide the interior of the tank body into an overflow chamber 102-Y, a mixing chamber 102-H and a circulating liquid outlet chamber 102-X, and a plurality of mixing holes 102-B-1 are formed on the second partition 102-B.

[0046] In this design, a first partition 102-A is provided between the overflow chamber 102-Y and the mixing chamber 102-H, a second partition 102-B is provided between the mixing chamber 102-H and the circulating liquid outlet chamber 102-X, and a flow space is provided at the top of the first partition 102-A and the second partition 102-B, which facilitates the formation of the overflow chamber 102-Y, the mixing chamber 102-H and the circulating liquid outlet chamber 102-X and the circulation of the fluid, making the structure simpler.

[0047] Specifically, Figure 4 As shown, the first partition 102-A is a solid plate structure, that is, the first partition 102-A adopts a flow-blocking design to separate the overflow chamber 102-Y and the mixing chamber 102-H. Figure 5As shown, a plurality of mixing holes 102-B-1 are evenly distributed on the second partition 102-B, and the mixing holes 102-B-1 penetrate the second partition 102-B along the thickness direction of the second partition 102-B, so that the second partition 102-B adopts a water distribution structure design, so that the fluids in the mixing chamber 102-H and the circulating liquid outlet chamber 102-X can circulate with each other to increase the mixing effect of the fluids.

[0048] In some embodiments, the average pore size of the mixing hole 102-B-1 is 1-10 mm to meet the requirements of fluid circulation and mixing.

[0049] In some embodiments, Figure 1 As shown, the concentrated brine inlet 102-3 is connected to the mixing chamber 102-H, and the concentrated brine inlet 102-3 is arranged near the upper edge of the first partition 102-A or the second partition 102-B. That is, the concentrated brine inlet 102-3 can be arranged on the side wall of the mixing chamber 102-H and near the lower side of the upper edge of the first partition 102-A, or, the concentrated brine inlet 102-3 can be arranged on the side wall of the mixing chamber 102-H and near the upper edge of the second partition 102-B, or, the concentrated brine inlet 102-3 is arranged on the top of the tank body and above the position area of ​​the mixing chamber 102-H.

[0050] In this design, the concentrated brine enters the top position of the mixing chamber 102-H through the concentrated brine inlet 102-3 to increase the mixing distance of the concentrated brine and enhance the mixing effect of the concentrated brine and the dilute brine.

[0051] In some embodiments, the lengths of the first partition 102-A and the second partition 102-B are set to be the same, that is, the upper edge of the first partition 102-A and the upper edge of the second partition 102-B are on the same horizontal plane. At this time, the fluid in the mixing chamber 102-H and the fluid in the circulating liquid outlet chamber 102-X can flow only through the mixing hole 102-B-1, ensuring the mixing effect.

[0052] In some embodiments, the length of the second partition 102-B is slightly smaller than the length of the first partition 102-A, that is, the upper edge height of the second partition 102-B is slightly lower than the upper edge height of the first partition 102-A. At this time, part of the fluid in the mixing chamber 102-H can enter the circulating liquid outlet chamber 102-X through the upper edge of the second partition 102-B, and the other part of the fluid passes through the mixing hole 102-B-1 and communicates with the fluid in the circulating liquid outlet chamber 102-X.

[0053] It can be seen that the length of the first partition 102-A and the length of the second partition 102-B can be designed according to actual needs.

[0054] In some embodiments, the top of the tank is further provided with an exhaust port 102-5, which is used to communicate with the water seal barrel 104. The exhaust port 102-5 is provided to allow the gas (chlorine) generated after the reaction to be discharged.

[0055] The anode separator 102 provided by the present application divides the interior of the tank into different functional areas, and configures different liquid inlet and outlet methods in different functional areas, so as to achieve the purpose of fully mixing concentrated brine with dilute brine and making the electrolysis reaction more stable, solve the problem of material waste caused by mixing concentrated brine into dilute brine, and avoid the risk of pressure loss in the anode chamber of the electrolytic cell caused by the overflow pipe 401 being destroyed by gas. Finally, the efficient and risk-free operation of the anode separator 102 is achieved, and the stable operation of the ion membrane caustic soda electrolysis unit is guaranteed.

[0056] like Figure 6 As shown, the utility model further provides an ion membrane electrolysis unit, including the above-mentioned anode separator 102. The anode separator 102 here includes all the technical features of the above-mentioned anode separator 102.

[0057] In some embodiments, continue to refer to Figure 6 The ion membrane electrolysis unit also includes an ion membrane electrolysis cell 103 and a concentrated brine barrel 101 .

[0058] The ion membrane electrolyzer 103 has an anode liquid outlet 103-1 and an anode liquid inlet 103-2, the anode liquid outlet 103-1 is connected to the circulation liquid return port 102-1 through a first pipeline, the anode liquid inlet 103-2 is connected to the circulation liquid outlet 102-4 through a second pipeline, and a circulation pump 202 is provided on the second pipeline to provide power for the circulation of the fluid through the circulation pump 202. Among them, a fifth valve 305 is provided on the first pipeline to control the on-off of the first pipeline through the fifth valve 305. A third valve 303 and a fourth valve 304 are provided on the second pipeline, the third valve 303 is arranged near the circulation liquid outlet 102-4, and the fourth valve 304 is arranged near the anode liquid inlet 103-2, so as to control the on-off of the second pipeline through the third valve 303 and the fourth valve 304.

[0059] The brine barrel 101 is connected to the brine inlet 102-3 through a third pipe. The brine barrel 101 is used to store brine. The third pipe is provided with a water inlet pump 201 to pump the brine in the brine barrel 101 into the mixing chamber 102-H through the water inlet pump 201. In addition, the third pipe is also provided with a first valve 301 and a second valve 302. The first valve 301 and the second valve 302 are respectively arranged on both sides of the water inlet pump 201, and the first valve 301 is arranged close to the brine barrel. The opening and closing of the third pipe can be controlled by setting the first valve 301 and the second valve 302.

[0060] In some embodiments, continue to refer to Figure 6 The ion membrane electrolysis unit also includes a water seal barrel 104 , and a gas outlet 102 - 5 is provided on the tank body. The gas outlet 102 - 5 is connected to the water seal barrel 104 through a fourth pipe, and the end of the fourth pipe extends into the bottom of the water seal barrel 104 .

[0061] Under this design, the outlet of the fourth pipe is located below the liquid level of the water seal barrel 104 and close to the bottom of the water seal barrel 104, so as to keep the water level of the water seal barrel 104 stable, thereby maintaining a stable positive pressure in the anode area of ​​the ion membrane electrolyzer 103, avoiding air entry, and reducing the risk of "tearing" disturbance of the ion membrane caused by excessive pressure changes.

[0062] In some embodiments, continue to refer to Figure 6 The ion membrane electrolysis unit also includes a salt water tank 105, and an overflow outlet 102-2 is provided on the tank body. The overflow outlet 102-2 is connected to the salt water tank 105 through an overflow pipe 401, and the height of the outlet end 401-1 of the overflow pipe is not lower than the height of the upper edge of the wall between the overflow chamber 102-Y and the mixing chamber 102-H. The overflow pipe 401 is provided with a sixth valve 306 to control the opening and closing of the overflow pipe 401 through the sixth valve 306.

[0063] Under this design, the brine is collected by the brine barrel 105. At the same time, the overflow pipe 401 is designed so that the overflow chamber 102-Y is always in a full liquid level state. At the same time, the overflow outlet 102-2 is arranged at the bottom of the tank body or near the bottom of the tank body, thereby avoiding the risk of the overflow pipe 401 being penetrated by gas and destroying the liquid seal, thereby causing the anode chamber of the electrolytic cell to lose pressure, avoiding the "tearing" disturbance of the ion membrane caused by this reason, extending the service life of the ion membrane, and ensuring the stability of the ion membrane operation.

[0064] The working process of the ion membrane electrolysis unit provided in this application is as follows:

[0065] When starting operation, inject concentrated brine, i.e., nearly saturated sodium chloride solution, into the concentrated brine barrel 101 to maintain a certain liquid level; inject light brine into the anode separator 102 until the liquid level in the anode separator 102 is above the upper edge of the first partition 102-A, and then stop injecting light brine. Inject tap water into the water seal barrel 104 to maintain a certain liquid level; keep the first valve 301, the second valve 302, the third valve 303, the fourth valve 304, the fifth valve 305 and the sixth valve 306 open.

[0066] Start the water inlet pump 201, and the concentrated brine is pumped from the concentrated brine barrel 101 into the anode separator 102; start the circulation pump 202, and the mixed solution of dilute brine and concentrated brine enters the ion membrane electrolyzer 103 from the anode separator 102. After the circulating liquid outlet 102-1 has discharged liquid and stabilized, the power supply of the ion membrane electrolyzer 103 is turned on, and the electrolysis reaction is started. The anode electrolysis reaction of the ion membrane electrolyzer 103 produces dilute brine and chlorine, which enter the anode separator 102 through the anode liquid outlet 103-1 through the first pipeline, and the dilute brine enters the overflow chamber 102-Y, and the chlorine enters the water seal barrel 104 through the exhaust port 102-5 and the fourth pipeline. Among them, a part of the light salt water entering the overflow chamber 102-Y is discharged into the light salt water barrel 105 through the overflow chamber 102-Y and the overflow pipe 401 under the action of hydraulic pressure; the other part of the light salt water passes through the first partition 102-A and enters the mixing chamber 102-H, and after preliminary mixing with the concentrated salt water, passes through the second partition 102-B that plays a role of physical stirring of water distribution to enter the circulating liquid outlet chamber 102-X, so that the concentrated salt water and the light salt water are fully mixed and evenly mixed, and the mixed liquid enters the circulating liquid outlet 102-4 and is pumped by the second pipeline and the circulating pump 202, and enters the ion membrane electrolyzer 103 through the anode liquid inlet 103-2 to participate in the electrolysis reaction. The outlet of the fourth pipeline is located below the liquid level of the water seal barrel 104 and close to the bottom of the barrel, so as to keep the water level of the water seal barrel 104 stable, so that the anode area of ​​the ion membrane electrolyzer 103 maintains a stable positive pressure, avoids air from entering, and also reduces the risk of "tearing" disturbance caused by excessive pressure changes to the ion membrane.

[0067] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] The above description is only a specific embodiment of the utility model, so that those skilled in the art can understand or implement the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments described herein, but should conform to the widest scope consistent with the principles and novel features of the utility model described herein.

Claims

1. An anode separator, characterized in that: The invention comprises a tank body, wherein an overflow cavity (102-Y), a mixing cavity (102-H) and a circulating liquid outlet cavity (102-X) are formed in the tank body in sequence in a horizontal direction, the mixing cavity (102-H) and the circulating liquid outlet cavity (102-X) are connected via a plurality of mixing holes (102-B-1), and the tank body is provided with: The circulating liquid return port (102-1) is located opposite to the overflow cavity (102-Y) in the vertical direction; A concentrated brine inlet (102-3) is located opposite to the mixing chamber (102-H) in the vertical direction; and The circulating liquid outlet (102-4) is connected to the bottom of the circulating liquid outlet cavity (102-X).

2. The anode separator according to claim 1, characterized in that The tank body is also provided with an overflow outlet (102-2), and the overflow outlet (102-2) is connected to the overflow cavity (102-Y).

3. The anode separator according to claim 2, characterized in that The overflow outlet (102-2) is also connected to an overflow pipe (401), and the outlet end (401-1) of the overflow pipe is used to connect to the salt water barrel (105), and the height of the outlet end (401-1) of the overflow pipe is not lower than the height of the upper edge of the wall between the overflow cavity (102-Y) and the mixing cavity (102-H).

4. The anode separator according to claim 1, characterized in that The bottom of the tank body extends upward to form a first partition (102-A) and a second partition (102-B), the height of the first partition (102-A) and the second partition (102-B) are less than the height of the tank body, the first partition (102-A) and the second partition (102-B) divide the interior of the tank body into the overflow chamber (102-Y), the mixing chamber (102-H) and the circulating liquid outlet chamber (102-X), and a plurality of mixing holes (102-B-1) are formed on the second partition (102-B).

5. The anode separator according to claim 4, characterized in that The concentrated brine inlet (102-3) is in communication with the mixing chamber (102-H), and the concentrated brine inlet (102-3) is arranged close to the upper edge of the first partition (102-A) or the second partition (102-B).

6. The anode separator according to claim 1, characterized in that: The top of the tank body is also provided with an exhaust port (102-5), and the exhaust port (102-5) is used to communicate with the water seal barrel (104).

7. An ion membrane electrolysis unit, characterized in that: It comprises the anode separator (102) as claimed in any one of claims 1 to 6.

8. The ion membrane electrolysis unit according to claim 7, characterized in that: The ion membrane electrolysis unit also includes: An ion membrane electrolyzer (103) has an anode liquid outlet (103-1) and an anode liquid inlet (103-2), wherein the anode liquid outlet (103-1) is connected to the circulating liquid return port (102-1) via a first pipeline, and the anode liquid inlet (103-2) is connected to the circulating liquid outlet (102-4) via a second pipeline, and a circulating pump (202) is provided on the second pipeline; The concentrated brine barrel (101) is connected to the concentrated brine liquid inlet (102-3) via a third pipeline, and a water inlet pump (201) is provided on the third pipeline.

9. The ion membrane electrolysis unit according to claim 8, characterized in that: The ion membrane electrolysis unit also includes a water seal barrel (104). The tank body is provided with an exhaust port (102-5). The exhaust port (102-5) is connected to the water seal barrel (104) via a fourth pipe, and the end of the fourth pipe extends into the bottom of the water seal barrel (104).

10. The ion membrane electrolysis unit according to claim 8, characterized in that: The ion membrane electrolysis unit also includes a salt water barrel (105), and the tank body is provided with an overflow outlet (102-2), and the overflow outlet (102-2) is connected to the salt water barrel (105) through an overflow pipe (401), and the height of the outlet end (401-1) of the overflow pipe is not lower than the upper edge height of the wall between the overflow cavity (102-Y) and the mixing cavity (102-H).

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