Electrolysis system and integrated polar plate frame thereof

Abstract

The utility model provides a polar plate frame for an electrolysis system and the electrolysis system thereof, and aims to solve the problems of heavy weight, long production cycle, high cost, unreasonable structure and the like of the polar plate frame in the prior art. The polar plate frame comprises a front frame body, a rear frame body and a spacing structure, and the targets of reproducibility, light weight, short production period and low cost are achieved by adopting an integrated injection molding technology. The front separating ribs, the rear separating ribs and the supporting columns are arranged in the polar plate frame, so that the flowing path of electrolyte is optimized, the electrolysis efficiency is improved, and the stability of the polar plate in the electrolysis process is ensured. In addition, by arranging the liquid supply channel and the distribution plate, turbulent flow is formed in the polar plate containing cavity, the mass transfer efficiency is further improved, and concentration polarization is reduced. The polar plate frame is simple in structure and easy to manufacture and maintain, has remarkable technical advantages and application value, and is expected to become a new generation of mainstream product in the electrolysis industry.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic technique field, specifically, relate to a kind of polar plate frame and the electrolytic system comprising the integration polar plate frame of this utility model.The utility model aims at providing a kind of polar plate frame with simple structure, low manufacturing cost and easy to copy, to improve the efficiency and economy of electrolytic system. BACKGROUND

[0002] In the electrolysis industry, the polar plate frame as the key component of electrolytic cell, its main function is to support and position the polar plate, to ensure that the electrolyte can flow evenly through the surface of the polar plate, so as to realize efficient electrolysis reaction. However, the existing polar plate frame has many problems and deficiencies in the process of manufacturing and using, which seriously restricts the performance improvement and cost reduction of electrolytic system.

[0003] The traditional polar plate frame is usually made of thermosetting resin footnotes. The polar plate frame of this material needs to be separately cast into front and rear frame bodies in the manufacturing process, and then the cast front and rear frame bodies and the spacing structure are fused into one body. This manufacturing method has many drawbacks. First of all, due to the characteristics of thermosetting plastic, the casting process needs a long time and high temperature, resulting in long production cycle and high energy consumption. Secondly, the fusion process needs precise control and professional equipment, which not only increases the manufacturing cost, but also easily produces defects at the fusion joint, such as poor fusion, over-fusion, etc., which will affect the structural strength and corrosion resistance of the polar plate frame.

[0004] In addition, the polar plate frame made of thermosetting resin is heavy, which is not convenient for installation and transportation. In the electrolytic cell, the polar plate frame needs to withstand the corrosion of electrolyte and the pressure generated by electrolysis reaction, so it has high requirements on its material and structure. However, the traditional thermosetting plastic polar plate frame has deficiencies in corrosion resistance, structural strength, etc., and cannot meet the high requirements of electrolytic system on polar plate frame. After a long time of use, the polar plate frame is prone to deformation, cracking and other problems, which leads to a decrease in electrolysis efficiency, and even causes safety accidents.

[0005] In summary, the polar plate frame in the prior art has many problems such as heavy weight, long production cycle, high cost, unreasonable structure and poor corrosion resistance, which seriously restricts the performance improvement and cost reduction of electrolytic system. Therefore, a new type of polar plate frame is urgently needed to overcome the deficiencies in the prior art and improve the overall performance and economic benefit of electrolytic system. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of polar plate frame for electrolytic system and its electrolytic system, aims at overcoming the defects of heavy weight, long production cycle, high cost and unreasonable structure of polar plate frame in the prior art, and provides a kind of polar plate frame with replicability, light weight, short production cycle, low cost and reasonable structure.

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

[0008] A kind of polar plate frame for electrolytic system, including front frame body, rear frame body and the spacing structure that front and rear frame body is spaced apart in front and back direction.The polar plate frame has replicable integral injection molding features, which is configured so that spacing structure and front and rear frame body are formed by injection molding process Integral configuration.Wherein, spacing structure is configured at the edge of front and rear frame body, and polar plate receiving cavity for accommodating polar plate is defined between front and rear frame body.

[0009] Further, the inner side of the front frame body has a plurality of front spacer ribs integrally formed therewith, which are interconnected with each other, and between which a front liquid inlet passage is formed for the electrolyte to enter the polar plate receiving cavity. Similarly, the inner side of the rear frame body also has a plurality of rear spacer ribs integrally formed therewith, which are interconnected with each other, and between which a rear liquid inlet passage is formed for the electrolyte to enter the polar plate receiving cavity. Such design not only enhances the structural strength of the polar plate frame, but also optimizes the flow path of the electrolyte, improving the electrolysis efficiency.

[0010] In addition, the two front spacer ribs intersecting with each other form a front intersection part at their intersection, and a front support column is arranged on the front intersection part, which can abut against the polar plate to maintain the distance between the polar plate and the front spacer rib. Similarly, the two rear spacer ribs intersecting with each other form a rear intersection part at their intersection, and a rear support column is arranged on the rear intersection part, which is adapted to abut against the polar plate to maintain the distance between the polar plate and the rear spacer rib. Such design ensures the stability of the polar plate during electrolysis, avoiding the loosening or deviation of the polar plate.

[0011] Further, the front support column and / or the rear support column can be configured to extend to the length of the polar plate receiving cavity, which can be adjusted by the user, such design increases the applicability and flexibility of the polar plate frame, and the distance between the polar plate and the spacer rib can be adjusted according to actual needs.

[0012] According to the specific application scenario, the polar plate frame can be used as an anode frame or a cathode frame. When the polar plate frame is an anode frame, it can be configured with corresponding anode polar plates; when the polar plate frame is a cathode frame, it can be configured with corresponding cathode polar plates.

[0013] In addition, the top of the polar plate receiving cavity can form a polar plate inlet for placing the polar plate, facilitating the installation and replacement of the polar plate. The left and right sides of the polar plate receiving cavity can form lateral through holes for the flow of electrolyte, and the bottom can form a bottom through hole for the flow of electrolyte, which further optimizes the flow path of the electrolyte, ensuring uniform distribution and effective update of the electrolyte.

[0014] Particularly, the polar plate frame can be further configured with a liquid supply channel for supplying electrolyte into the polar plate receiving cavity, the liquid supply channel comprising a plurality of liquid outlet holes arranged dispersedly at the bottom of the polar plate receiving cavity and a liquid inlet pipe for obtaining electrolyte from the outside. The electrolyte obtained by the liquid inlet pipe is injected into the polar plate receiving cavity through the plurality of liquid outlet holes, so that a turbulent flow can be formed in the polar plate receiving cavity, further improving the electrolysis efficiency.

[0015] Compared with the prior art, the polar plate frame has the following remarkable technical effects:

[0016] 1. By adopting the one-piece injection molding technology, the replicability, light weight, short production cycle and low cost of the polar plate frame are achieved.

[0017] 2. By optimizing the structural design of the polar plate frame, such as setting the front partition, the rear partition and the liquid inlet channel, the flow path of the electrolyte is effectively improved, and the electrolysis efficiency is improved.

[0018] 3. By setting the support column, the problem of adhesion between the polar plate and the diaphragm bag due to deformation of the polar plate can be prevented.

[0019] 4. By setting the liquid supply mode of spraying from the bottom of the polar plate receiving cavity, the cathode liquid in the polar plate receiving cavity is disturbed, the mass transfer efficiency is improved, and the concentration polarization is reduced.

[0020] In summary, the polar plate frame and the electrolysis system thereof have remarkable technical advantages and application value, and are expected to become a new generation of mainstream product in the electrolysis industry. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but not limit the present application.

[0022] Figure 1 is a structural view of the electrolytic cell in embodiment one.

[0023] Figure 2 is a front side view of the polar plate frame in embodiment one.

[0024] Figure 3 is a rear side view of the polar plate frame in embodiment one.

[0025] Figure 4 is a top view of the polar plate frame in embodiment one.

[0026] Figure 5 is a bottom view of the polar plate frame in embodiment one.

[0027] Figure 6 is a front side view of the polar plate frame in embodiment two.

[0028] Figure 7 is a top view of the polar plate frame in Example 2.

[0029] Reference signs:

[0030] 1. electrolytic cell; 2. polar plate frame; 201. front frame body; 202. rear frame body; 203. spacing structure; 204. lateral via hole; 205. polar plate inlet; 206. bottom via hole; 207. front partition; 208. rear partition; 209. front support column; 210. rear support column; 211. liquid inlet pipe; 212. liquid outlet hole; 213. distribution plate; 3. diaphragm bag. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the present application will be further described in detail below with reference to the drawings. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] Unless otherwise defined, the technical terms or scientific terms used in the patent document should be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the patent specification and claims of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one", "an" or "the" and similar words do not represent a quantity limitation, but represent the existence of at least one. "Including" or "containing" and similar words mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. "Center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are only used to represent relative positional relationships, which may change accordingly when the absolute position of the described object changes, and they are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, structure and operation, and therefore cannot be understood as limiting the present application.

[0034] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connected, can be two elements inside the communication.For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0035] The utility model discloses some implementation manners are explained in detail below combining with the drawings.The purpose of the utility model is to provide a kind of novel electrolytic cell arrangement method, to improve the production efficiency and capacity of electrolytic cell, while reducing the influence on operation efficiency and capacity.In the case of no conflict, the features in the following examples can be combined with each other.

[0036] The specific embodiments of the utility model will be described in detail below combining with the drawings.These examples are only used to illustrate the utility model, and should not be regarded as limiting the scope of the utility model.

[0037] Example one

[0038] Please refer to Figures 1-5 , wherein Figure 1 It is the structure view of electrolytic cell in example one, Figure 2 It is the front side view of polar plate frame in example one, Figure 3 It is the back side view of polar plate frame in example one, Figure 4 It is the top view of polar plate frame in example one, Figure 5 It is the bottom view of polar plate frame in example one.

[0039] Reference Figure 1 As shown in a kind of integrated electrolytic cell 1, anode frame and cathode frame are arranged in electrolytic cell 1 with interval and alternately, and diaphragm bag 3 is sleeved on the outside of anode frame.In the process of electrodeposition, cathode liquid outside diaphragm bag 3 flows into anode area by liquid level difference.

[0040] Reference Figures 2-5As shown, the present embodiment provides a polar plate frame 2 for electrolytic system, in particular, the polar plate frame 2 is configured as an anode frame. The polar plate frame 2 comprises a front frame body 201, a rear frame body 202 and a spacing structure 203 spacing the front and rear frame bodies in the front-rear direction. The polar plate frame 2 has a replicable one-piece injection molding feature configured to make the spacing structure 203 and the front and rear frame bodies (i.e. the front frame body 201 and the rear frame body 202) form an integral structure through an injection molding process. This one-piece injection molding technology not only simplifies the production process, shortens the production cycle and reduces the production cost, but also improves the structural strength and corrosion resistance of the polar plate frame 2, and greatly reduces the mass and production cost of the polar plate frame.

[0041] The spacing structure 203 is configured at the edge of the front and rear frame bodies and defines a polar plate receiving cavity between the front and rear frame bodies for accommodating the polar plate. The design of the polar plate receiving cavity enables the polar plate to be accommodated in the polar plate frame 2 and maintain a distance from the diaphragm bag 3, preventing adhesion between the polar plate and the diaphragm bag.

[0042] Further, the inner side of the front frame body 201 has a plurality of front partition ribs 207 integrally formed thereon and interconnected with each other. These front partition ribs 207 not only enhance the structural strength of the front frame body 201, but also form front liquid inlet channels for the electrolyte to enter the polar plate receiving cavity. Similarly, the inner side of the rear frame body 202 also has a plurality of rear partition ribs 208 integrally formed thereon and interconnected with each other, and the rear partition ribs 208 form rear liquid inlet channels for the electrolyte to enter the polar plate receiving cavity. The polar plate frame formed by one-piece injection molding can not embed reinforcing components such as steel bars in the front and rear partition ribs, thereby reducing the size of the partition ribs, and further reducing the area proportion of the partition ribs in the front and rear liquid inlet faces of the polar plate frame, thereby increasing the liquid inlet area of the front and rear liquid inlet channels and improving the flowability of the electrolyte, which can effectively avoid the concentration polarization phenomenon.

[0043] In addition, the two front partition ribs 207 intersecting with each other form a front intersection portion at the intersection thereof, and a front support 209 is arranged on the front intersection portion. The front support 209 is configured to abut against the polar plate to maintain a distance between the polar plate and the front partition ribs 207. Similarly, the two rear partition ribs 208 intersecting with each other form a rear intersection portion at the intersection thereof, and a rear support 210 is arranged on the rear intersection portion. The rear support 210 is adapted to abut against the polar plate to maintain a distance between the polar plate and the rear partition ribs 208. The design of the front support 209 and the rear support 210 ensures the stability of the polar plate during the electrolysis process and prevents the deformation of the anode plate.

[0044] In the present embodiment, the front support 209 and the rear support 210 can each be configured to extend to the length of the polar plate receiving cavity, which can be adjusted by the user. Such a design increases the applicability and flexibility of the polar plate frame 2, and the distance between the polar plate and the partition ribs can be adjusted according to actual needs to meet the needs of different electrolytic systems.

[0045] At the top of the polar plate receiving cavity, a polar plate inlet 205 is formed for placing the polar plate. Such design facilitates the installation and replacement of the polar plate, improving the maintenance efficiency of the electrolysis system. At the same time, lateral through holes 204 for the flow of electrolyte are formed on the left and right sides of the polar plate receiving cavity, and a bottom through hole 206 for the flow of electrolyte is formed at the bottom. Such design further ensures the uniform distribution and effective update of the electrolyte, thereby improving the mass transfer efficiency during the electrolysis process and avoiding the problem of concentration polarization.

[0046] In summary, the polar plate frame 2 of the present embodiment achieves the goals of replicability, light weight, short production cycle and low cost by adopting the one-piece injection molding technology and optimizing the structural design. At the same time, by setting the front and rear partitioning ribs 207 and 208, the front and rear struts 209 and 210, etc., the flow path of the electrolyte is effectively improved, the electrolysis efficiency is improved, and the stability of the polar plate during the electrolysis process is ensured. In addition, the polar plate frame 2 also has the advantages of simple structure, easy manufacturing and maintenance, etc., and is expected to become a new generation of mainstream product in the electrolysis industry.

[0047] Embodiment Two:

[0048] Please refer to Figures 6-7 , wherein Figure 6 is the front side view of the polar plate frame in Embodiment Two, Figure 7 is the top view of the polar plate frame in Embodiment Two.

[0049] The present embodiment provides a polar plate frame 2 for an electrolysis system, in particular, the polar plate frame 2 is configured as a cathode frame. The polar plate frame 2 also includes a front frame body 201, a rear frame body 202, and a spacing structure 203 spacing the front and rear frame bodies in the front-rear direction. The polar plate frame 2 has replicable one-piece injection molding features, so that the entire polar plate frame 2 forms an integral whole, with the advantages of simple structure, light weight, short production cycle and low cost, etc.

[0050] Similar to Embodiment One, the spacing structure 203 is arranged at the edge of the front and rear frame bodies and defines a polar plate receiving cavity between the front and rear frame bodies for accommodating the polar plate. The design of the polar plate receiving cavity enables the polar plate to be stably placed in the polar plate frame 2.

[0051] In the present embodiment, the polar plate frame 2 is also provided with a liquid supply channel for supplying electrolyte into the polar plate receiving cavity. The liquid supply channel includes a plurality of liquid outlet holes 212 arranged dispersedly at the bottom of the polar plate receiving cavity and a liquid inlet pipe 211 for obtaining electrolyte from the outside. In particular, the liquid supply channel also includes a distribution plate 213, and the plurality of liquid outlet holes 212 are distributed on the distribution plate 213. A cathode liquid distribution cavity is formed between the distribution plate 213 and the bottom of the polar plate frame 2, and the cathode liquid distribution cavity communicates with the liquid inlet pipe 211 and the liquid outlet holes 212.

[0052] When the electrolyte enters the cathode liquid distribution cavity from the liquid inlet pipe 211, the electrolyte can be uniformly sprayed into the electrode plate receiving cavity through the multiple liquid outlet holes 212 on the distribution plate 213. This design not only forms a uniform electrolyte film on the surface of the electrode plate, which is beneficial to the electrolysis reaction, but also forms a turbulent flow, further improving the mass transfer efficiency and reducing the occurrence of concentration polarization phenomenon.

[0053] The electrode plate frame 2 of the embodiment forms a turbulent flow in the electrode plate receiving cavity by configuring the liquid supply channel and the distribution plate 213, thereby improving the electrolysis efficiency. At the same time, the electrode plate frame 2 also has the advantages of simple structure, light weight, short production cycle and low cost. In addition, by setting the front partition, the rear partition, the support and other structures, the structural strength of the electrode plate frame 2 is further enhanced, the flow path of the electrolyte is optimized, and the stability of the electrode plate during the electrolysis process is ensured. Therefore, the electrode plate frame 2 of the embodiment is expected to become a new generation of mainstream product in the electrolysis industry.

[0054] In summary, the electrode plate frame and the electrolysis system thereof have significant technical advantages and application value. By adopting the one-piece injection molding technology and optimizing the structural design, the replicability, light weight, short production cycle and low cost of the electrode plate frame are achieved. At the same time, by setting the front partition, the rear partition, the support and other structures as well as the liquid supply channel, the electrolysis efficiency is effectively improved, and the stability of the electrode plate during the electrolysis process is ensured. In addition, the electrode plate frame also has the advantages of simple structure, easy manufacturing and maintenance, and can meet the high requirements of the electrolysis system for the electrode plate frame, and is expected to become a new generation of mainstream product in the electrolysis industry.

[0055] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. An integrated polar plate frame for an electrolysis system, comprising a front frame body, a rear frame body, and a spacer structure spacing the front and rear frame bodies in a front-rear direction; characterized in that, the polar plate frame has a replicable one-piece injection molding feature configured to: the spacer structure and the front and rear frame bodies are of an integral construction formed by an injection molding process; wherein the spacer structure is configured at edges of the front and rear frame bodies and defines polar plate receiving cavities between the front and rear frame bodies for receiving polar plates.

2. The integrated plate frame of claim 1, wherein an inner side of the front frame body has a plurality of front spacer ribs integrally formed thereon and intercrossingly connected, the plurality of front spacer ribs intercrossingly connected defining front liquid inlet channels for electrolyte to enter the polar plate receiving cavities.

3. The integrated plate frame of claim 2, wherein, an inner side of the rear frame body has a plurality of rear spacer ribs integrally formed thereon and intercrossingly connected, the plurality of rear spacer ribs intercrossingly connected defining rear liquid inlet channels for electrolyte to enter the polar plate receiving cavities.

4. The integrated plate frame of claim 3, wherein, two of the front spacer ribs intercrossingly connected define a front intersection at an intersection thereof, the front intersection having a front strut configured to abut against a polar plate to maintain a distance between the polar plate and the front spacer ribs.

5. The integrated plate frame of claim 4, wherein, two of the rear spacer ribs intercrossingly connected define a rear intersection at an intersection thereof, the rear intersection having a rear strut adapted to abut against a polar plate to maintain a distance between the polar plate and the rear spacer ribs.

6. The integrated plate frame of claim 5, wherein, the front strut and / or the rear strut is configured to extend to a length of the polar plate receiving cavities adjustable by a user.

7. The integrated plate frame of any one of claims 2-6, wherein, the polar plate frame is an anode frame.

8. The integrated plate frame of claim 1, wherein, a top of the polar plate receiving cavities formed between the front and rear frame bodies defines a polar plate inlet for inserting a polar plate.

9. The integrated plate frame of claim 1 or 8, wherein, left and right sides of the polar plate receiving cavities define lateral through holes for electrolyte to flow therethrough.

10. The integrated plate frame of claim 9, wherein, a bottom of the polar plate receiving cavities defines a bottom through hole for electrolyte to flow therethrough.

11. The integrated plate frame of claim 1, wherein, the polar plate frame has a liquid supply channel configured to supply electrolyte to the polar plate receiving cavities, the liquid supply channel comprising: a plurality of liquid outlet holes dispersedly arranged at the bottom of the polar plate receiving cavities; and a liquid inlet pipe configured to obtain electrolyte from an external environment; wherein the electrolyte obtained by the liquid inlet pipe is injected into the polar plate receiving cavities via the plurality of liquid outlet holes to form a turbulence in the polar plate receiving cavities.

12. The integrated plate frame of claim 11, wherein, the polar plate frame is a cathode frame.

13. An electrolysis system comprising an electrolysis cell and a polar plate frame, characterized in that, the polar plate frame is any one of the integrated polar plate frames of claims 1-12.

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