Tool capable of realizing on-line disassembly and assembly of small electrolysis chamber in electrolytic bath

Abstract

The invention discloses a tool capable of realizing on-line disassembly and assembly of a small electrolysis chamber in an electrolytic bath, and belongs to the field of hydrogen production by electrolyzing water. Comprising a supporting tool used for supporting an electrolytic cell and a tensioning and fixing tool used for fixing bipolar plates on the two sides of a damaged electrolysis cell. The shape of the upper surface of the supporting tool is consistent with that of the lower surface of the electrolytic cell. The supporting tool comprises a supporting body, and wheels used for moving the supporting tool are arranged below the supporting body. A lifting device used for adjusting the height of the supporting tool is arranged below the wheels. The tensioning and fixing tool comprises a fixing body, and a plurality of holes for screws to be inserted are formed in the fixing body. And a connecting piece for fixing the fixed main body is arranged on the side surface of the fixed main body. According to the tool capable of achieving online disassembly and assembly of the small electrolysis chamber in the electrolytic cell, the effects that long-distance transportation in the maintenance process of the small electrolysis chamber can be avoided, the maintenance time is shortened, and the maintenance cost is reduced can be achieved.

Description

Technical Field

[0001] The invention relates to hydrogen production by electrolyzing water, and in particular to a tool capable of realizing online disassembly and assembly of an electrolysis chamber in an electrolytic cell. Background Art

[0002] Hydrogen production by water electrolysis is a process that uses electricity to decompose water into hydrogen and oxygen. The main device for producing hydrogen by water electrolysis is the electrolyzer. From the perspective of structural appearance, the current electrolyzer structure is mainly divided into circular electrolyzers and square electrolyzers. Circular electrolyzers have a history of more than 100 years of development and have a history of several decades in China. They are the mainstream structural form of electrolyzers at home and abroad. The electrolysis chamber refers to the smallest unit composed of cathode and anode electrodes, diaphragms, etc., which can electrolyze water to generate hydrogen and oxygen under the action of direct current. The electrolysis chamber contains the core components of the electrolyzer: electrodes, diaphragms, sealing gaskets, and bipolar plates.

[0003] With the trend of gradually enlarging single electrolyzers in recent years, the size and weight of electrolyzers have also increased year by year. However, the reliability of the core components of electrolyzers is not satisfactory, and failures often occur, requiring long-distance transportation to the original factory for disassembly and replacement of damaged parts. Returning to the factory for repair not only wastes a lot of time and has extremely high transportation costs, but also after the electrolyzer is disassembled, all gaskets need to be replaced, which further increases the maintenance cost. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a tool that can realize the online disassembly and assembly of the electrolytic chamber in the electrolytic cell, which can avoid long-distance transportation during the maintenance of the electrolytic chamber, shorten the maintenance time, and reduce the maintenance cost.

[0005] Technical solution: The tooling for online disassembly and assembly of the electrolytic chamber in the electrolytic cell described in the present invention includes a supporting tooling for supporting the electrolytic cell and a tightening and fixing tooling for fixing the bipolar plates on both sides of the damaged electrolytic chamber.

[0006] Preferably, the shape of the upper surface of the supporting tooling is consistent with the shape of the lower surface of the electrolytic cell.

[0007] Preferably, the supporting tooling comprises a supporting body, and wheels for moving the supporting tooling are provided below the supporting body.

[0008] Preferably, a lifting device for adjusting the height of the supporting tooling is provided under the wheels.

[0009] Preferably, the tightening and fixing tool comprises a fixing body, and a plurality of holes for inserting screws are provided on the fixing body.

[0010] Preferably, a connecting piece is provided on the side of the fixed body to fix it.

[0011] Preferably, the connecting piece is a telescopic rod, and the telescopic rod is integrally formed with the fixed body.

[0012] Preferably, the connecting piece is a non-metallic tension belt; the tension belt is connected to the fixed body in the following manner: a hole is punched on the fixed body, and the tension belt is passed through the hole for fixing.

[0013] Preferably, the connecting piece is a metal wire; further preferably, the metal wire is a steel wire.

[0014] Preferably, the metal wire is connected to the fixing body in the following manner: a hole is punched on the fixing body and the metal wire is passed through the hole for fixing.

[0015] Preferably, the metal wire is connected to the fixed body in the following manner: a lifting ring is welded on the fixed body, and the metal wire passes through the lifting ring to be fixed.

[0016] Preferably, the end pressure plate in the electrolytic cell includes an end pressure plate body and an insert block, and a plurality of grooves connected to the bolt mounting holes on the end pressure plate are provided on the outer surface of the end pressure plate body, and the shapes of the grooves and the insert block match each other and are connected by screws.

[0017] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: (1) The tooling supports the electrolytic cell by means of a liftable and movable supporting tooling, thereby ensuring that the bipolar plate in the middle of the electrolytic cell does not sink due to gravity, so as to ensure the relative position between the bipolar plates in the electrolytic cell; (2) The tooling fixes the bipolar plates on both sides of the damaged electrolytic chamber by means of a tightening and fixing tooling, thereby ensuring that during the process of disassembling and assembling the damaged electrolytic chamber, other electrolytic chambers that do not need to be disassembled and assembled are not affected, thereby reducing maintenance costs and saving maintenance time; (3) The tooling uses a supporting tooling in conjunction with a tightening and fixing tooling, and when disassembling and assembling the electrolytic chamber, the undamaged electrolytic chamber is protected in both the horizontal and vertical directions, thereby realizing online disassembly and assembly of the damaged electrolytic chamber in the electrolytic cell, thereby effectively avoiding long-distance transportation during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall appearance diagram of the present invention is

[0019] Figure 2 for Figure 1 A partial enlarged view of the middle A area;

[0020] Figure 3 It is a structural schematic diagram of the end pressure plate;

[0021] Figure 4 A schematic diagram of the supporting tooling;

[0022] Figure 5 This is a cross-sectional view of the support tooling when working. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below in conjunction with embodiments.

[0024] Example 1

[0025] As shown in the figure, the tooling for realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell of the present invention comprises a supporting tooling 1 for supporting the electrolytic cell and a tightening and fixing tooling 2 for fixing the bipolar plates on both sides of the damaged electrolytic chamber.

[0026] The shape of the upper surface of the supporting tool 1 is consistent with the shape of the lower surface of the electrolytic cell, so that it can be closely attached to the lower surface of the electrolytic cell, thereby supporting the weight of the electrolytic cell.

[0027] The supporting tool 1 comprises a supporting body 11 , and wheels 12 for moving the supporting tool 1 are arranged below the supporting body 11 .

[0028] A lifting device 13 for adjusting the height of the supporting tool 1 is provided below the wheels 12 .

[0029] The tightening and fixing tool 2 comprises a fixing body 21 , on which a plurality of holes 22 for inserting screws are provided.

[0030] A connecting piece 23 is disposed on the side of the fixed body 21 to fix it.

[0031] The connecting piece 23 is a steel wire, and the fixing body 21 is connected to the steel wire in the following manner: a hole is punched on the fixing body 21, and the steel wire is passed through the hole for fixing.

[0032] The end pressure plate in the electrolytic cell includes an end pressure plate body 31 and an insert block 32. The outer surface of the end pressure plate body 31 is provided with five grooves connected to the bolt mounting holes on the end pressure plate. The shapes of the grooves and the insert block 32 match each other and are connected by screws.

[0033] The method of using the tooling of the present invention is as follows:

[0034] (1) Use a voltmeter to detect the damaged cell in the electrolytic cell and determine the location of the damaged cell.

[0035] (2) Use the wheels under the support body to move the support tooling to the bottom of the electrolytic cell, and adjust the height of the support tooling through the lifting device so that its upper surface is closely fitted with the lower surface of the electrolytic cell to support the weight of the electrolytic cell.

[0036] (3) Take two tensioning and fixing fixtures, and fix the fixing body to the bipolar plates on both sides of the damaged electrolytic chamber by screws (drill holes in the corresponding positions of the bipolar plates in advance for the screws to pass through), and connect the fixing body to the end pressure plate or any external fixing device through a hydraulic mechanism, so that the relative position of the undamaged electrolytic chamber between the tensioning and fixing fixture and the end pressure plate can be fixed, thereby ensuring the stability of the undamaged electrolytic chamber during the disassembly and assembly process.

[0037] (4) Remove the plug on the outer surface of the end pressure plate. Since the outer surface of the end pressure plate is provided with a groove connected to its bolt mounting hole, the bolts and disc spring located at the top of the electrolytic cell and used to penetrate the entire electrolytic cell can be removed from the outer surface of the electrolytic cell.

[0038] (5) Remove the damaged electrolysis chamber and install a new electrolysis chamber in the appropriate position.

[0039] (6) Install the bolts and disc springs on the top of the electrolytic cell and tighten them.

[0040] (7) Remove the tensioning and fixing tooling.

[0041] (8) Remove the supporting tooling, complete the replacement of the damaged electrolytic chamber in the electrolytic cell, and complete the online disassembly and assembly of the electrolytic chamber in the electrolytic cell.

[0042] Example 2

[0043] The same parts as those in the first embodiment will not be described in detail. The difference lies in that the connecting member 23 is a telescopic rod, and the telescopic rod and the fixed body 21 are integrally formed.

[0044] Example 3

[0045] The same parts as those in Example 1 are not described in detail in this embodiment. The difference is that the connecting member 23 is a non-metallic tension belt, and the connection method between the fixed body 21 and the tension belt is: a hole is punched on the fixed body 21, and the tension belt is passed through the hole for fixing.

Claims

1. A tool capable of realizing online disassembly and assembly of an electrolytic chamber in an electrolytic cell, characterized in that: It comprises a supporting tool (1) for supporting an electrolytic cell and a tightening and fixing tool (2) for fixing bipolar plates on both sides of a damaged electrolytic chamber.

2. The tooling capable of realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell according to claim 1, characterized in that: The shape of the upper surface of the supporting tooling (1) is consistent with the shape of the lower surface of the electrolytic cell.

3. The tooling capable of realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell according to claim 1, characterized in that: The supporting tool (1) comprises a supporting body (11), and wheels (12) for moving the supporting tool (1) are arranged below the supporting body (11).

4. The tooling capable of realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell according to claim 3, characterized in that: A lifting device (13) for adjusting the height of the supporting tooling (1) is provided below the wheels (12).

5. The tooling capable of realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell according to claim 1, characterized in that: The tightening and fixing tool (2) comprises a fixing body (21), and a plurality of holes (22) for inserting screws are provided on the fixing body (21).

6. The tooling capable of realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell according to claim 5, characterized in that: A connecting piece (23) is provided on the side of the fixed body (21) to fix it.

7. The tooling capable of realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell according to claim 6, characterized in that: The connecting piece (23) is a telescopic rod, and the telescopic rod and the fixed body (21) are integrally formed.

8. The tooling capable of realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell according to claim 6, characterized in that: The connecting piece (23) is a metal wire.

9. The tooling capable of realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell according to claim 8, characterized in that: The metal wire is connected to the fixing body (21) in the following manner: a hole is punched on the fixing body (21), and the metal wire passes through the hole for fixing.

10. The tooling capable of realizing online disassembly and assembly of the electrolytic chamber in the electrolytic cell according to claim 1, characterized in that: The end pressure plate in the electrolytic cell comprises an end pressure plate body (31) and an insert block (32). The outer surface of the end pressure plate body (31) is provided with a plurality of grooves connected to the bolt mounting holes on the end pressure plate. The shapes of the grooves and the insert block (32) match each other and are connected by screws.

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