Polar plate sealing device and electrochemical equipment

Abstract

The utility model discloses a pole plate sealing device and electrochemical equipment, the pole plate sealing device comprises a diaphragm bag and a sealing assembly, the diaphragm bag is provided with an opening, and the inner side of the diaphragm bag is provided with sealing cloth; the sealing assembly comprises a supporting frame and a sealing cover, the supporting frame is arranged in the diaphragm bag and forms a containing space, the containing space is provided with a containing opening, a sealing groove is formed in the end, facing the opening, of the supporting frame and surrounds the periphery of the containing opening, the sealing cloth is laid in the sealing groove, and the sealing cover is arranged at the opening and extends into the sealing groove. The polar plate can penetrate through the opening and the placing opening and is placed in the placing space, the sealing cloth on the inner side of the diaphragm bag extends into the sealing groove, and the sealing cover extends into the sealing groove, so that the sealing groove is filled with the sealing cloth and the sealing cover to seal the placing space, harmful gas is effectively prevented from leaking from the diaphragm bag, and the sealing effect is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electrochemistry technical field, concretely relates to a kind of polar plate sealing device and electrochemistry equipment. BACKGROUND

[0002] Metal salt in the process of electrolysis reaction, anode chamber will produce gas with strong corrosive, corrosive gas leakage not only can cause serious pollution to environment, and can corrode conductive structure, reduce the utilization of electric energy, however, the existing anode chamber sealing structure cannot meet the sealing requirement, leakage phenomenon is prone to occur, poor sealing effect. UTILITY MODEL CONTENTS

[0003] In view of the above-mentioned defects or deficiencies, the utility model provides a kind of polar plate sealing device and electrochemistry equipment, to solve the technical problem of poor sealing effect of the existing anode chamber sealing structure.

[0004] In order to achieve the above purpose, the utility model embodiment provides a kind of polar plate sealing device, including:

[0005] Diaphragm bag, diaphragm bag has opening, and the inner side of diaphragm bag is equipped with sealing cloth;

[0006] Sealing assembly, sealing assembly includes support frame and sealing cover, support frame is located in diaphragm bag and is formed with the placement space for placing polar plate, placement space has placement port, the end of support frame towards opening is equipped with sealing groove, sealing groove is surrounded in the outer periphery of placement port, sealing cloth is laid in sealing groove, sealing cover is located at opening and extends into sealing groove.

[0007] In the utility model embodiment, support frame is equipped in diaphragm bag, support frame forms the placement space with placement port, and the placement port of placement space is communicated with the opening of diaphragm bag, polar plate can pass through opening and placement port and is placed in placement space, the end of support frame towards opening is equipped with the sealing groove surrounded in the outer periphery of placement port, sealing cloth on diaphragm bag extends into sealing groove, and sealing cover extends into sealing groove, so that sealing cloth and sealing cover fill sealing groove to seal placement space, effectively prevent harmful gas from leaking from diaphragm bag, greatly improve the sealing effect.

[0008] In the utility model embodiment, sealing cover includes sealing plate and sealing surrounding board, sealing surrounding board is connected with sealing plate and surrounds the circumference of sealing plate, sealing plate is arranged corresponding to placement port, sealing surrounding board extends into sealing groove, sealing cloth is clamped between the groove wall of sealing groove and sealing surrounding board.

[0009] In the utility model embodiment, the sealing groove has a groove bottom wall and a first groove side wall connected with the groove bottom wall, the sealing fence is formed with a sealing edge on the side facing the groove bottom wall and a first sealing surface on the side facing the first groove side wall, the sealing cloth comprises a first sealing section connected with the diaphragm bag and an extension section connected with the first sealing section, the first sealing section is laid on the first groove side wall and clamped between the first groove side wall and the first sealing surface, and the extension section is laid on the groove bottom wall and clamped between the groove bottom wall and the sealing edge.

[0010] In the utility model embodiment, the sealing groove further has a second groove side wall, the second groove side wall is connected with the groove bottom wall and oppositely arranged with the first groove side wall, the sealing fence is formed with a second sealing surface on the side facing away from the first sealing surface, and the sealing cloth further comprises a second sealing section connected with the extension section, the second sealing section is laid on the second groove side wall and clamped between the second groove side wall and the second sealing surface.

[0011] In the utility model embodiment, the support frame comprises a sealing seat and a support frame, the support frame is connected with the sealing seat and formed with a placing space, the sealing seat is provided with a placing opening, and the sealing seat is provided with a sealing groove on the side facing the opening.

[0012] In the utility model embodiment, the support frame comprises two grid plates, the two grid plates are arranged on the sealing seat in a spaced mode, and the placing space is formed between the two grid plates.

[0013] In the utility model embodiment, the polar plate sealing device further comprises a conductive assembly, the conductive assembly comprises a conductive row, a connecting rod and a conductive sheet, the conductive row is arranged on the side of the sealing cover facing away from the support frame, the connecting rod is sequentially penetrated through the conductive row and the sealing cover and used for being connected with the polar plate, and the conductive sheet is arranged on the conductive row and connected with the connecting rod.

[0014] In the utility model embodiment, the sealing assembly further comprises a communication pipe arranged on the sealing cover, and the communication pipe is communicated with the placing space.

[0015] And / or, the diaphragm bag and the sealing cover are formed with a liquid seal space, and the liquid seal space is located at the end of the support frame facing the opening.

[0016] In the utility model embodiment, the support frame is made of chlorinated polyvinyl chloride, hard polyvinyl chloride or thermoplastic rubber material.

[0017] And / or, the sealing cover is made of chlorinated polyvinyl chloride, hard polyvinyl chloride or thermoplastic rubber material.

[0018] In the utility model embodiment, the diaphragm bag comprises a bag body and a connecting piece, the bag body is provided with an opening and an inner side sealing cloth, the support frame is arranged in the bag body, the connecting end of the connecting piece is connected with the bag body, and the free end of the connecting piece is connected to the side of the sealing cover facing away from the support frame.

[0019] To achieve the above object, the utility model also provides an electrochemical equipment, electrochemical equipment includes the polar plate sealing device according to above.

[0020] Other features and advantages of the embodiments of the utility model will be described in detail in the following specific implementation part. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the embodiments of the utility model, and constitute a part of the specification, and are used to explain the embodiments of the utility model together with the following specific implementation, but do not constitute the limitation to the embodiments of the utility model. For ordinary skilled person in the art, under the premise of not paying creative labor, other drawings can also be obtained according to the structure shown in these drawings. In the drawings,

[0022] Figure 1 It is the assembly structure schematic view of polar plate sealing device according to an embodiment of the utility model;

[0023] Figure 2 It is the exploded structure schematic view of polar plate sealing device according to an embodiment of the utility model;

[0024] Figure 3 It is the cross-sectional structure schematic view of polar plate sealing device according to an embodiment of the utility model;

[0025] Figure 4 It is Figure 3 The enlarged schematic view of area A in;

[0026] Figure 5 It is the cross-sectional structure schematic view of support frame and sealing cover in polar plate sealing device according to an embodiment of the utility model;

[0027] Figure 6 It is the cross-sectional structure schematic view of diaphragm bag in polar plate sealing device according to an embodiment of the utility model;

[0028] Figure 7 It is the structure schematic view of support frame in polar plate sealing device according to an embodiment of the utility model;

[0029] Figure 8 It is the structure schematic view of sealing cover in polar plate sealing device according to an embodiment of the utility model.

[0030] EXPLANATION OF REFERENCE NUMERALS

[0031] 100 bag body 2213 second groove side wall

[0032] 110 opening 230 support frame

[0033] 120 sealing cloth 231 grating plate

[0034] 121 first sealing section 300 sealing cover

[0035] 122 extension section 310 sealing plate

[0036] 123 second sealing section 320 sealing baffle

[0037] 130 connecting piece 321 sealing edge

[0038] 140 liquid seal space 322 first sealing surface

[0039] 200 support frame 323 second sealing surface

[0040] 210 placement space 330 communication pipe

[0041] 211 placement opening 400 conductive assembly

[0042] 220 sealing seat 410 conductive row

[0043] 221 sealing groove 420 connecting rod

[0044] 2211 groove bottom wall 430 polar plate

[0045] 2212 first groove side wall 500 polar plate DETAILED DESCRIPTION

[0046] The specific embodiments described hereinbelow with reference to the drawings illustrate specific embodiments of the present application. It should be understood that the specific embodiments described herein are merely illustrative of the present application and should not be construed as limiting the present application.

[0047] The polar plate sealing device of the present application is described below with reference to the drawings.

[0048] As shown in Figures 1 to 4 The present application provides a polar plate sealing device, which comprises a diaphragm bag and a sealing assembly. The diaphragm bag has an opening 110, and the inner side of the diaphragm bag is provided with a sealing cloth 120. The sealing assembly comprises a support frame 200 and a sealing cover 300. The support frame 200 is arranged in the diaphragm bag and forms a placement space 210 for placing a polar plate 500. The placement space 210 has a placement opening 211. The support frame 200 is provided with a sealing groove 221 at one end facing the opening 110. The sealing groove 221 is arranged around the outer periphery of the placement opening 211. The sealing cloth 120 is arranged in the sealing groove 221. The sealing cover 300 is arranged at the opening 110 and extends into the sealing groove 221.

[0049] It should be noted that the polar plate sealing device can be applied to the polar plate 500 in the electrochemical equipment to seal the polar plate 500 in the diaphragm bag, prevent the corrosive gas generated in the process of electrolysis reaction of the polar plate 500 from leaking from the diaphragm bag, wherein the polar plate 500 can be an anode plate or a cathode plate, the electrolysis reaction includes electrolytic deposition, electrolytic refining or electrolytic extraction, etc., for example, in the process of preparing nickel by adopting chloridizing salt system electrowinning nickel process, the cathode liquid in the electrolytic cell and the polar plate 500 perform electrolytic deposition reaction under the action of direct current, the nickel ion of the cathode is deposited to form metal nickel, and the anode generates chlorine gas with strong corrosion, the polar plate sealing device can seal the chlorine gas with strong corrosion in the diaphragm bag to prevent chlorine gas from leaking to cause environmental pollution, the type of the polar plate 500 and the type of the electrolysis reaction of the electrochemical equipment are not limited, and the embodiment of the utility model only takes the electrolysis reaction as chloridizing salt system electrowinning nickel, and the anode generates chlorine gas with strong corrosion as an example for description.

[0050] Specifically, the diaphragm bag contains the support frame 200, the support frame 200 is formed with a placing space 210 with a placing opening 211, and the placing opening 211 of the placing space 210 is in communication with the opening 110 of the diaphragm bag, the polar plate 500 can pass through the opening 110 and the placing opening 211 and be placed in the placing space 210, the support frame 200 is provided with a sealing groove 221 surrounding the outer periphery of the placing opening 211 at one end facing the opening 110, the sealing cloth 120 on the diaphragm bag extends into the sealing groove 221, and the sealing cover 300 extends into the sealing groove 221, so that the sealing cloth 120 and the sealing cover 300 fill the sealing groove 221 to seal the placing space 210, effectively preventing harmful gas from leaking from the diaphragm bag, and greatly improving the sealing effect. Moreover, the sealing groove 221 surrounds the outer periphery of the placing opening 211 to form a "hui" shaped sealing structure, the sealing cover 300 extends into the sealing groove 221 and cooperates with the sealing groove 221 to block the placing opening 211, so that the polar plate sealing device has good sealing performance, and the sealing cloth 120 is clamped between the sealing cover 300 and the groove wall of the sealing groove 221 to further prevent harmful gas from leaking from the gap between the sealing cover 300 and the groove wall of the sealing groove 221, and the sealing effect is reliable.

[0051] In the embodiment of the utility model, the sealing cover 300 includes a sealing plate 310 and a sealing surrounding plate 320, the sealing surrounding plate 320 is connected with the sealing plate 310 and surrounds the periphery of the sealing plate 310, the sealing plate 310 is provided corresponding to the placing opening 211, the sealing surrounding plate 320 extends into the sealing groove 221, and the sealing cloth 120 is clamped between the groove wall of the sealing groove 221 and the sealing surrounding plate 320.

[0052] As Figures 2 to 5As shown, the sealing coaming 320 is arranged along the outer edge of the sealing plate 310 and connected with the sealing plate 310, the sealing plate 310 is arranged corresponding to the placing opening 211 to prevent harmful gas from leaking from the placing opening 211, the sealing coaming 320 is used to extend into the sealing groove 221 and clamp the sealing cloth 120 laid in the sealing groove 221 with the groove wall of the sealing groove 221, the sealing cloth 120 can block the gap between the sealing coaming 320 and the groove wall of the sealing groove 221, thereby realizing the sealing of the placing space 210, and the sealing effect is good; and the sealing cover 300 and the sealing groove 221 are detachably connected, which facilitates placing or taking out the polar plate 500 in the placing space 210, and improves the disassembly and assembly convenience.

[0053] Further, the sealing assembly further comprises a communication pipe 330 arranged on the sealing cover 300, and the communication pipe 330 is in communication with the placing space 210. Figure 1 、 Figure 2 and Figure 8 As shown, the sealing cover 300 is provided with the communication pipe 330, and the communication pipe 330 is used for communication with the placing space 210 to facilitate suction of harmful gas and anolyte generated in the placing space 210 through the communication pipe 330, and exposure of the harmful gas to the environment is effectively prevented.

[0054] In the embodiment of the utility model, as shown in the figure, Figure 4 A liquid seal space 140 is formed between the diaphragm bag and the sealing cover 300, and the liquid seal space 140 is located at one end of the support frame 200 facing the opening 110. Specifically, the electrochemical device comprises an electrolytic cell, and an electrolytic tank for containing catholyte is formed in the electrolytic cell. By placing the diaphragm bag in the electrolytic tank, the liquid level of the catholyte is higher than the groove opening of the sealing groove 221, that is, the support frame 200 is located below the liquid level of the catholyte, and thus the catholyte is filled in the liquid seal space 140 and forms a liquid seal with the sealing groove 221 to isolate the gas, further preventing the harmful gas from leaking from the diaphragm bag, and improving the sealing performance.

[0055] In the embodiment of the utility model, the sealing groove 221 has a groove bottom wall 2211 and a first groove side wall 2212 connected with the groove bottom wall 2211, the sealing coaming 320 is formed with a sealing edge 321 on the side facing the groove bottom wall 2211, and a first sealing surface 322 on the side facing the first groove side wall 2212, the sealing cloth 120 comprises a first sealing section 121 connected with the diaphragm bag and an extension section 122 connected with the first sealing section 121, the first sealing section 121 is laid on the first groove side wall 2212 and clamped between the first groove side wall 2212 and the first sealing surface 322, and the extension section 122 is laid on the groove bottom wall 2211 and clamped between the groove bottom wall 2211 and the sealing edge 321.

[0056] As shown in the figure, Figures 4 to 8As shown, the first groove sidewall 2212 extends along the outer edge of the groove bottom wall 2211 and connects to the groove bottom wall 2211. The extension section 122 of the sealing cloth 120 is connected to the inner side of the diaphragm bag through the first sealing section 121. The extension section 122 and the first sealing section 121 extend into the sealing groove 221. The extension section 122 is laid on the groove bottom wall 2211, and the first sealing section 121 is laid on the first groove sidewall 2212. The sealing plate 320 extends into the sealing groove 221, and the sealing edge 321 of the sealing plate 320 corresponds to the groove. The bottom wall 2211 is provided and cooperates with the bottom wall 2211 to clamp the extension section 122. The first sealing surface 322 is provided corresponding to the first side wall 2212 of the groove and cooperates with the first side wall 2212 to clamp the first sealing surface 322, thereby preventing harmful gases from leaking from the gap between the sealing edge 321 and the bottom wall 2211 of the groove and the gap between the first sealing surface 322 and the first side wall 2212 of the groove. Both the extension section 122 and the first sealing section 121 can play the role of blocking harmful gases, extending the effective sealing path and improving the sealing effect.

[0057] In this embodiment of the utility model, the sealing groove 221 also has a second groove sidewall 2213, which is connected to the bottom wall 2211 and is disposed opposite to the first groove sidewall 2212. The sealing plate 320 forms a second sealing surface 323 on the side facing away from the first sealing surface 322. The sealing cloth 120 also includes a second sealing section 123 connected to the extension section 122. The second sealing section 123 is laid on the second groove sidewall 2213 and sandwiched between the second groove sidewall 2213 and the second sealing surface 323.

[0058] like Figures 4 to 8 As shown, the second groove sidewall 2213 extends along the outer edge of the groove bottom wall 2211 and connects with the groove bottom wall 2211. The first groove sidewall 2212 and the second groove sidewall 2213 are spaced apart and surround the outer periphery of the second groove sidewall 2213, so that the first groove sidewall 2212, the groove bottom wall 2211 and the second groove sidewall 2213 form a "U" shaped sealing structure. The second sealing section 123 of the sealing cloth 120 is connected to the first sealing section 121 through the extension section 122. The second sealing section 123 is laid on the second groove sidewall 2213. The second sealing surface 323 of the sealing plate 320 is set corresponding to the second groove sidewall 2213 and cooperates with the second groove sidewall 2213 to clamp the second sealing surface 323, thereby preventing harmful gases from leaking from the gap between the second sealing surface 323 and the second groove sidewall 2213. The second sealing section 123 blocks harmful gases, further extending the effective sealing path and strengthening the sealing effect.

[0059] In the embodiment of the utility model, support frame 200 includes seal seat 220 and support frame 230, support frame 230 is connected with seal seat 220 and forms and places space 210, and seal seat 220 is equipped with seal groove 221 on the one end towards opening 110, and seal seat 220 is equipped with seal groove 221 on the one end towards opening 110.

[0060] As Figure 5 And Figure 7 Seal seat 220 is connected with support frame 230 on one end, and seal groove 221 is equipped on the one end of seal seat 220 away from support frame 230, and support frame 230 forms and places space 210 for placing polar plate 500, and seal seat 220 is equipped with placing opening 211 in communication with placing space 210, so that polar plate 500 can pass through placing opening 211 from opening 110 and be placed in placing space 210, and seal groove 221 is circumferentially arranged at placing opening 211, and sealing cover 300 extends into seal groove 221 and is clamped and tightly sealed with the groove wall of seal groove 221 to prevent harmful gas generated by electrolytic reaction of polar plate 500 from leaking from placing opening 211, so that the sealing effect is good and environmental pollution is reduced.

[0061] In the embodiment of the utility model, support frame 230 includes two grid plates 231, and the two grid plates 231 are arranged on seal seat 220 at intervals, and the placing space 210 is formed between the two grid plates 231. Figure 5 And Figure 7 As shown in And

[0062] In the embodiment of the utility model, the polar plate sealing device further includes a conductive assembly 400, the conductive assembly 400 includes a conductive bar 410, a connecting rod 420, and a conductive sheet 430, the conductive bar 410 is arranged on the side of the sealing cover 300 away from the support frame 200, the connecting rod 420 sequentially passes through the conductive bar 410 and the sealing cover 300 and is used for being connected with the polar plate 500, and the conductive sheet 430 is arranged on the conductive bar 410 and is connected with the connecting rod 420.

[0063] Specifically, in the embodiment of the utility model, the conductive bar 100 is a group of metal conductors, generally in the shape of a rod, used for supporting and fixing other objects, bearing and transmitting loads. In some embodiments, the conductive bar 100 is also called a busbar or a conductive beam, etc. When the metal conductor is a copper conductor, it is also called a copper bar.

[0064] As Figure 1 AndFigure 2 As shown, the conductive row 410 is used for connecting with the power supply, the upper end of the connecting rod 420 passes through the conductive row 410 and is connected with the conductive row 410, the lower end of the connecting rod 420 passes through the sealing cover 300, and the polar plate 500 is connected to the lower end of the connecting rod 420, the conductive sheet 430 is installed on the conductive row 410, the conductive sheet 430 is arranged in the direction away from the conductive row 410 and is connected with the connecting rod 420, the power supply supplies power to the conductive row 410, so that the current flowing through the conductive row 410 can be conducted to the connecting rod 420 directly from the conductive row 410, or can be conducted to the connecting rod 420 through the conductive sheet 430 from the conductive row 410, the connecting rod 420 conducts the current to the polar plate 500 for electrolysis reaction, the connection of the conductive row 410 and the connecting rod 420 through the conductive sheet 430 increases the conductive path between the conductive row 410 and the connecting rod 420, so that the current flowing through the conductive row 410 can be conducted to the polar plate 500 through the conductive sheet 430 and the connecting rod 420, the conductive performance is enhanced, and the power utilization rate is improved.

[0065] In the embodiment of the utility model, the support frame 200 is made of chlorinated polyvinyl chloride, unplasticized polyvinyl chloride or thermo-plastic-rubber material, and the sealing cover 300 is made of chlorinated polyvinyl chloride, unplasticized polyvinyl chloride or thermo-plastic-rubber material. Specifically, the support frame 200 and the sealing cover 300 can be made of chlorinated polyvinyl chloride (CPVC), unplasticized polyvinyl chloride (UPVC), thermo-plastic-rubber material (TPR) or other high-temperature-resistant and corrosion-resistant polymer materials, so that the support frame 200 and the sealing cover 300 can be applied to high-temperature environments and corrosive gas environments, prolonging the service life and ensuring the sealing reliability.

[0066] Further, the diaphragm bag is made of woven cloth material, and the permeability of the diaphragm bag is 25L / min-35L / min, preferably 30L / min, so that the cathode liquid in the electrolytic cell can penetrate into the diaphragm bag and react with the polar plate 500, and the sealing cloth 120 is made of cotton cloth material, which is soft and easy to fold, facilitating the laying of the sealing cloth 120 on the groove wall of the sealing groove 221 and filling the gap between the sealing baffle 320 and the groove wall of the sealing groove 221, and the thickness of the sealing cloth 120 is 1mm-3mm, preferably 1.5mm, facilitating the laying in the sealing groove 221 and having good sealing effect.

[0067] In the embodiment of the utility model, diaphragm bag includes bag body 100 and connecting piece 130, bag body 100 has opening 110 and is equipped with sealed cloth 120 in the inside, support frame 200 is located in bag body 100, and the connecting end of connecting piece 130 is connected with bag body 100, and the free end of connecting piece 130 is connected to the side of sealed cover 300 away from support frame 200. Specifically, bag body 100 is sleeved outside support frame 200 to be used for containing support frame 200, the connecting end of connecting piece 130 is connected on bag body 100, and the free end of connecting piece 130 is connected on conductive row 410 or connecting rod 420 to fix support frame 200 and bag body 100 relative to sealed cover 300, and connecting piece 130 plays the role of bearing the weight of support frame 200, prevents the falling of polar plate 500 in support frame 200 and placement space 210, improves structural stability and sealing reliability.

[0068] Further, as shown in Figure 1 And Figure 6 The number of connecting piece 130 is two, and two connecting pieces 130 are oppositely arranged on the two sides of opening 110, the connecting end of two connecting pieces 130 is connected on bag body 100, and the free end of two connecting pieces 130 is connected to each other to bind two connecting pieces 130 on the upside of sealed cover 300, and then fix support frame 200 and bag body 100 relative to sealed cover 300, play the role of bearing the weight of support frame 200, prevent the falling of polar plate 500 in support frame 200 and placement space 210, improve structural stability and sealing reliability, and the connection is convenient and fast.

[0069] In addition, the utility model also provides a kind of electrochemical equipment, and electrochemical equipment includes the polar plate sealing device according to above, and electrochemical equipment also includes electrolytic cell, electrolytic cell is formed with electrolytic tank for containing catholyte, by placing diaphragm bag in electrolytic tank, so that the liquid level of catholyte is higher than the slot of sealed groove 221, i.e., support frame 200 is located below the liquid level of catholyte, and then catholyte forms liquid seal relative to sealed groove 221 to isolate gas, further prevent harmful gas from leaking from diaphragm bag, improve sealing property;And, the specific structure of the polar plate sealing device refers to the above embodiment, since electrochemical equipment adopts all technical solutions of the above embodiment, at least has all beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0070] In the description of the utility model, it is understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0071] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0072] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0073] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and the skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.

Claims

1. A plate sealing device, characterized in that, The electrode sealing device includes: A diaphragm bag having an opening (110) and a sealing cloth (120) on the diaphragm bag; A sealing assembly includes a support frame (200) and a sealing cap (300). The support frame (200) is disposed inside the diaphragm bag and forms a placement space (210) for placing the electrode plate (500). The placement space (210) has a placement opening (211). A sealing groove (221) is provided at one end of the support frame (200) facing the opening (110). The sealing groove (221) surrounds the outer periphery of the placement opening (211). A sealing cloth (120) is laid in the sealing groove (221). The sealing cap (300) is disposed at the opening (110) and extends into the sealing groove (221).

2. The electrode sealing device according to claim 1, characterized in that, The sealing cover (300) includes a sealing plate (310) and a sealing surrounding plate (320). The sealing surrounding plate (320) is connected to the sealing plate (310) and surrounds the periphery of the sealing plate (310). The sealing plate (310) is provided corresponding to the placement opening (211). The sealing surrounding plate (320) extends into the sealing groove (221). The sealing cloth (120) is sandwiched between the groove wall of the sealing groove (221) and the sealing surrounding plate (320).

3. The electrode sealing device according to claim 2, characterized in that, The sealing groove (221) has a bottom wall (2211) and a first side wall (2212) connected to the bottom wall (2211). The sealing plate (320) has a sealing edge (321) on the side facing the bottom wall (2211) and a first sealing surface (322) on the side facing the first side wall (2212). The sealing cloth (120) includes a first sealing section (121) connected to the diaphragm bag and an extension section (122) connected to the first sealing section (121). The first sealing section (121) is laid on the first side wall (2212) and sandwiched between the first side wall (2212) and the first sealing surface (322). The extension section (122) is laid on the bottom wall (2211) and sandwiched between the bottom wall (2211) and the sealing edge (321).

4. The electrode sealing device according to claim 3, characterized in that, The sealing groove (221) also has a second groove sidewall (2213), which is connected to the bottom wall (2211) and is disposed opposite to the first groove sidewall (2212). The sealing plate (320) forms a second sealing surface (323) on the side facing away from the first sealing surface (322). The sealing cloth (120) also includes a second sealing section (123) connected to the extension section (122). The second sealing section (123) is laid on the second groove sidewall (2213) and sandwiched between the second groove sidewall (2213) and the second sealing surface (323).

5. The electrode sealing device according to claim 1, characterized in that, The support frame (200) includes a sealing seat (220) and a support frame (230). The support frame (230) is connected to the sealing seat (220) and forms the placement space (210). The sealing seat (220) has a placement opening (211) and a sealing groove (221) is formed at one end of the sealing seat (220) facing the opening (110).

6. The electrode sealing device according to claim 5, characterized in that, The support frame (230) includes two grid plates (231), which are spaced apart on the sealing seat (220), and the placement space (210) is formed between the two grid plates (231).

7. The electrode sealing device according to any one of claims 1 to 6, characterized in that, The electrode sealing device further includes a conductive component (400), which includes a conductive busbar (410), a connecting rod (420), and a conductive sheet (430). The conductive busbar (410) is located on the side of the sealing cover (300) facing away from the support frame (200). The connecting rod (420) passes through the conductive busbar (410) and the sealing cover (300) in sequence and is used to connect with the electrode plate (500). The conductive sheet (430) is located on the conductive busbar (410) and connected with the connecting rod (420).

8. The electrode sealing device according to any one of claims 1 to 6, characterized in that, The sealing assembly also includes a connecting pipe (330) disposed on the sealing cover (300), the connecting pipe (330) being connected to the placement space (210); And / or, a liquid seal space (140) is formed between the diaphragm bag and the sealing cap (300), and the liquid seal space (140) is located at one end of the support frame (200) facing the opening (110).

9. The electrode sealing device according to any one of claims 1 to 6, characterized in that, The diaphragm bag includes a bag body (100) and a connector (130). The bag body (100) has the opening (110) and the sealing cloth (120) is provided on the inner side. The support frame (200) is disposed inside the bag body (100). The connecting end of the connector (130) is connected to the bag body (100), and the free end of the connector (130) is connected to the side of the sealing cap (300) facing away from the support frame (200).

10. An electrochemical device, characterized in that, The electrochemical device includes an electrode sealing device according to any one of claims 1 to 9.

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