Electrolytic tank assembly table

Abstract

The utility model belongs to the technical field of electrolytic bath assembly, and particularly relates to an electrolytic bath assembly table which comprises a basic cabinet body, a fixed support column, an upper fixed plate, an air tightness detector communicating seat, a lower clamping plate, a lifting driving assembly, an upper lifting seat and an upper clamping plate, the lower clamping plate is installed on the top face of the air tightness detector communication base, the lifting driving assembly is installed on the upper fixing plate, the upper clamping plate is connected to the lower side of the upper lifting base, and the upper lifting base is driven by the driving end of the lifting driving assembly to ascend and descend. According to the utility model, air tightness detection can be completed before the electrolytic cell is fastened and assembled through the electrolytic cell bolt, the phenomena of repeated disassembly, high cost and low yield caused by unqualified air tightness detection after assembly are avoided, four production processes of stacking, pressurizing, air tightness detection and fastening of the electrolytic cell can be realized at one time, the applicability is good, and the production efficiency is high. The use is reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolytic cell assembly, in particular to an electrolytic cell assembly platform. Background Art

[0002] The PEM electrolyzer is mainly composed of membrane electrodes, gas diffusion layers, bipolar plates, end plates and other components stacked in a fixed order, and sealed by seals between the components.

[0003] In the existing technology, the assembly of PEM electrolyzers usually involves stacking the components first, and then tightening the assembly with electrolyzer bolts. Then, the water inlet, oxygen outlet, and hydrogen outlet on the end plate of the electrolyzer are tested for air tightness using an air tightness tester to determine whether the air tightness of the entire cell is qualified. If there is no problem, a bench test is performed. However, the first-time pass rate in the actual assembly process is not high, and repeated disassembly and assembly repair processes are prone to occur, which will cause the performance and sealing of the electrolyzer to decline, affecting the product pass rate. Utility Model Content

[0004] In view of the problem that there is currently no device capable of completing airtightness detection of an electrolytic cell before fastening and assembling the electrolytic cell by electrolytic cell bolts, the utility model aims to provide an electrolytic cell assembly station.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] An electrolytic cell assembly platform comprises a basic cabinet, a fixed support, an upper fixed plate, an air tightness detector connecting seat, a lower clamping plate, a lifting drive assembly, an upper lifting seat and an upper clamping plate;

[0007] The upper fixing plate is located above the basic cabinet and is connected to the basic cabinet through a plurality of the fixing pillars. The airtightness detector connecting seat is installed on the top surface of the basic cabinet. The lower clamping plate is installed on the top surface of the airtightness detector connecting seat. A water inlet connecting hole and an oxygen outlet connecting hole are respectively provided on the lower clamping plate. The water inlet connecting hole is arranged at a position corresponding to the water inlet of the electrolytic cell to be pressed and fixed, and the oxygen outlet connecting hole is arranged at a position corresponding to the oxygen outlet of the electrolytic cell to be pressed and fixed. A water inlet communication channel and an oxygen outlet communication channel are respectively provided on the air tightness detector connection seat, the water inlet communication channel has two openings, the oxygen outlet communication channel also has two openings, one of the openings of the water inlet communication channel is arranged at a position corresponding to and connected with the water inlet communication hole, one of the openings of the oxygen outlet communication channel is arranged at a position corresponding to and connected with the oxygen outlet communication hole, and the other opening of the water inlet communication channel and the other opening of the oxygen outlet communication channel are respectively used to communicate with an external air tightness detector;

[0008] The lifting drive assembly is installed on the upper fixed plate, the upper lifting seat is located between the upper fixed plate and the lower clamping plate, the upper clamping plate is connected to the lower side of the upper lifting seat and is located directly above the lower clamping plate, the upper lifting seat is driven to lift and lower by the driving end of the lifting drive assembly, the upper clamping plate is provided with a hydrogen outlet connecting flow channel, the hydrogen outlet connecting flow channel has two openings, one of the openings of the hydrogen outlet connecting flow channel is set at a position corresponding to the hydrogen outlet of the electrolyzer to be pressed and fixed, and the other opening of the hydrogen outlet connecting flow channel is used to communicate with an external air tightness detector.

[0009] Another opening of the water inlet communicating with the flow channel, another opening of the oxygen outlet communicating with the flow channel, and another opening of the hydrogen outlet communicating with the flow channel are respectively provided with switch valves.

[0010] A plurality of lateral baffles for limiting the position of the electrolytic cell are arranged on the outer peripheral surface of the lower clamping plate.

[0011] A guide rail is installed on each of the fixed pillars in the vertical direction, and a slider is provided on the outer circumferential surface of the upper lifting seat at a position corresponding to each of the guide rails, and each of the sliders is slidably connected to the corresponding guide rail.

[0012] The upper clamping plate and the upper lifting seat are connected via a connecting rod.

[0013] The lifting drive assembly includes a servo motor, a planetary reducer, a cylinder connecting seat, a fixed cylinder, an upper end cover, a lower end cover, a ball screw, a screw nut, and a hollow push rod;

[0014] The upper and lower ends of the fixed cylinder body are open, and a lower end cover is installed on the lower end opening of the fixed cylinder body, and an upper end cover is installed on the upper end opening of the fixed cylinder body, the cylinder body connecting seat is installed on the upper end cover, the housing of the planetary reducer is installed on the cylinder body connecting seat, the housing of the servo motor is installed on the housing of the planetary reducer, the output end of the servo motor is connected with the input end of the planetary reducer, the output end of the planetary reducer is connected with the upper end of the ball screw, the lower part of the ball screw extends into the fixed cylinder body, the lower part of the ball screw located in the fixed cylinder body is connected with the screw nut through a thread, the upper part of the hollow push rod penetrates into the fixed cylinder body and is located on the outside of the ball screw, the upper part of the hollow push rod is fixedly connected with the screw nut, the lower part of the hollow push rod penetrates from the lower end opening and the lower end cover of the fixed cylinder body, and is connected with the upper lifting seat as the driving end of the lifting drive assembly.

[0015] The lower end cover is fixedly connected to the upper fixing plate.

[0016] The axial center line of the fixed cylinder body, the axial center line of the ball screw and the axial center line of the hollow push rod are all collinear.

[0017] The driving end of the lifting drive assembly is connected to the upper lifting seat through a coupling and a pressure sensor which are arranged in sequence from top to bottom.

[0018] The upper cover of the upper fixing plate is provided with a protective cover for protecting the lifting drive assembly.

[0019] The advantages and positive effects of the utility model are:

[0020] The utility model can complete the air-tightness test of the electrolytic cell before assembling it by fastening the electrolytic cell bolts, and eliminate the phenomenon of repeated disassembly and assembly, high cost and low yield rate caused by unqualified air-tightness test after assembly, and can realize the four production processes of stacking, pressurizing, air-tightness test and fastening of the electrolytic cell at one time, thereby improving the yield rate of product production, optimizing the production process, having good applicability and reliable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the top view of the structure of the air tightness detector connecting seat of the utility model;

[0023] Figure 3 It is a schematic diagram of the top view of the lower clamping plate of the utility model;

[0024] Figure 4 It is a schematic diagram of the top structure of the upper clamping plate of the utility model;

[0025] Figure 5 It is a schematic diagram of the top structure of the upper fixing plate of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the lifting drive assembly of the utility model.

[0027] In the figure: 1 is a basic cabinet, 2 is a fixed support, 3 is an upper fixed plate, 4 is a connecting seat for an air tightness detector, 401 is a connecting flow channel for a water inlet, 402 is a connecting flow channel for an oxygen outlet, 5 is a lower clamping plate, 501 is a connecting hole for a water inlet, 502 is a connecting hole for an oxygen outlet, 6 is an upper lifting seat, 7 is an upper clamping plate, 701 is a connecting flow channel for a hydrogen outlet, 8 is a switch valve, 9 is a lateral baffle, 10 is a guide rail, 11 is a connecting rod, 12 is a servo motor, 13 is a planetary reducer, 14 is a cylinder connecting seat, 15 is a fixed cylinder, 16 is an upper end cover, 17 is a lower end cover, 18 is a ball screw, 19 is a screw nut, 20 is a hollow push rod, 21 is a coupling, 22 is a pressure sensor, 23 is a protective cover, and 24 is a control panel. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-6 The utility model is further described in detail.

[0029] An electrolytic cell assembly station, such as Figure 1-6 As shown, this embodiment includes a basic cabinet 1, a fixed support 2, an upper fixed plate 3, an airtightness detector connecting seat 4, a lower clamping plate 5, a lifting drive assembly, an upper lifting seat 6 and an upper clamping plate 7.

[0030] The upper fixing plate 3 is located above the basic cabinet 1 and is connected to the top surface of the basic cabinet 1 through four fixing pillars 2. In this embodiment, the upper fixing plate 3, the fixing pillars 2 and the top surface of the basic cabinet 1 can be made of high-strength carbon steel respectively, forming a stable structure of three beams and four pillars, which can meet the maximum load-type variable requirements within the press-fitting area of ​​the assembly table.

[0031] The airtightness detector connecting seat 4 is installed on the middle of the top surface of the basic cabinet 1 by screws, and the lower clamping plate 5 is installed on the middle of the top surface of the airtightness detector connecting seat 4 by screws. The lower clamping plate 5 is respectively provided with a water inlet connecting hole 501 and an oxygen outlet connecting hole 502. The setting position of the water inlet connecting hole 501 corresponds to the water inlet of the electrolytic cell to be pressed and fixed, and the setting position of the oxygen outlet connecting hole 502 corresponds to the oxygen outlet of the electrolytic cell to be pressed and fixed. The airtightness detector connecting seat 4 is respectively provided with a water inlet connecting flow channel 401 is connected to the oxygen outlet communication channel 402, the water inlet communication channel 401 has two openings, the oxygen outlet communication channel 402 also has two openings, one of the openings of the water inlet communication channel 401 is arranged at a position corresponding to the water inlet communication hole 501 and one of the openings of the oxygen outlet communication channel 402 is arranged at a position corresponding to the oxygen outlet communication hole 502, and the other opening of the water inlet communication channel 401 and the other opening of the oxygen outlet communication channel 402 are respectively used to communicate with an external air tightness detector.

[0032] The lifting drive assembly is installed on the upper fixed plate 3, the upper lifting seat 6 is located between the upper fixed plate 3 and the lower clamp plate 5, the upper clamp plate 7 is connected to the lower side of the upper lifting seat 6 and is located directly above the lower clamp plate 5, the upper lifting seat 6 is driven to lift by the driving end of the lifting drive assembly, the upper clamp plate 7 is provided with a hydrogen outlet connecting flow channel 701, the hydrogen outlet connecting flow channel 701 has two openings, one of the openings of the hydrogen outlet connecting flow channel 701 is arranged to be connected to the hydrogen outlet of the electrolytic cell to be clamped and fixed, and the other opening of the hydrogen outlet connecting flow channel 701 is used to communicate with an external air tightness detector. The upper clamp plate 7 is used to directly compress the electrolytic cells stacked on the lower clamp plate 5. In this embodiment, the air tightness detector connecting seat 4 can be made of stainless steel, and the lower clamp plate 5 and the upper clamp plate 7 can be made of aluminum alloy.

[0033] Specifically, in this embodiment, another opening of the water inlet connecting flow channel 401, another opening of the oxygen outlet connecting flow channel 402, and another opening of the hydrogen outlet connecting flow channel 701 are respectively provided with a switch valve 8. Each switch valve 8 is used to control whether the water inlet connecting flow channel 401, the oxygen outlet connecting flow channel 402, and the hydrogen outlet connecting flow channel 701 are connected to the outside atmosphere. When the air tightness test is performed by using an air tightness detector to connect the water inlet, oxygen outlet, and hydrogen outlet of the electrolyzer respectively, it is necessary to ensure that the other ports of the electrolyzer that are not connected to the air tightness detector are not connected to the atmosphere. For example, the air tightness detector is connected to the switch valve 8 on the other opening of the water inlet connecting flow channel 401 through a pipeline, so that the air tightness detector is connected to the water inlet of the electrolyzer. At this time, it is necessary to ensure that the switch valve 8 on the other opening of the oxygen outlet connecting flow channel 402 and the switch valve 8 on the other opening of the hydrogen outlet connecting flow channel 701 are all in a closed state, so that the oxygen outlet and the hydrogen outlet are not connected to the outside atmosphere. The same applies when the air tightness detector is connected to the switch valve 8 on the other opening of the oxygen outlet communication channel 402 or to the switch valve 8 on the other opening of the water inlet communication channel 401. In this embodiment, the switch valves 8 are all commercially available manual switch valve products, which are convenient for staff to open and close.

[0034] Specifically, in this embodiment, two lateral baffles 9 for limiting the electrolytic cell are provided on the outer circumference of the lower clamping plate 5 to ensure that the components of the electrolytic cell are accurately placed and stacked on the lower clamping plate 5. In this embodiment, one of the lateral baffles 9 is located at the rear side of the lower clamping plate 5, and the other lateral baffle 9 is located at the left side of the lower clamping plate 5.

[0035] Specifically, in this embodiment, a guide rail 10 is installed on each fixed support 2 in the vertical direction, and a slider is provided on the outer circumferential surface of the upper lifting seat 6 at a position corresponding to each guide rail 10, and each slider is slidably connected to the corresponding guide rail 10. In this embodiment, each guide rail 10 is a commercially available precision heavy-duty linear guide product, which can make the upper lifting seat 6 stably and accurately lift and lower, and ensure that the deflection deformation in four directions under extreme eccentric load conditions meets the deformation accuracy requirements.

[0036] Specifically, in this embodiment, the upper clamping plate 7 and the upper lifting seat 6 are connected by a connecting rod 11, and the connecting rod 11 is fixedly connected to the upper clamping plate 7 and the upper lifting seat 6 by screws. The connecting rod 11 of different lengths can be replaced according to the thickness of the electrolytic cell to be clamped and fixed, and has good applicability.

[0037] Specifically, if Figure 6 As shown, the lifting drive assembly in this embodiment includes a servo motor 12, a planetary reducer 13, a cylinder connecting seat 14, a fixed cylinder 15, an upper end cover 16, a lower end cover 17, a ball screw 18, a screw nut 19, and a hollow push rod 20.

[0038] The upper and lower ends of the fixed cylinder 15 are both open. A lower end cover 17 is installed on the lower end opening of the fixed cylinder 15. The lower end cover 17 is fixedly connected to the upper fixed plate 3 by screws. An upper end cover 16 is installed on the upper end opening of the fixed cylinder 15. Figure 5 As shown, a central hole is reserved in the middle for the hollow push rod 20 to pass through, and a fixing screw hole is provided for installing a screw. The cylinder connecting seat 14 is installed on the upper end cover 16, the housing of the planetary reducer 13 is installed on the cylinder connecting seat 14, the housing of the servo motor 12 is installed on the housing of the planetary reducer 13, the output end of the servo motor 12 is connected to the input end of the planetary reducer 13, the output end of the planetary reducer 13 is connected to the upper end of the ball screw 18, the lower part of the ball screw 18 extends into the fixed cylinder 15, the lower part of the ball screw 18 located in the fixed cylinder 15 is connected to the screw nut 19 through a thread, the upper part of the hollow push rod 20 penetrates into the fixed cylinder 15 and is located on the outside of the ball screw 18, the upper part of the hollow push rod 20 is fixedly connected to the screw nut 19, the lower part of the hollow push rod 20 penetrates from the lower end opening of the fixed cylinder 15 and the lower end cover 17, and is connected to the upper lifting seat 6 as the driving end of the lifting drive assembly. In this embodiment, the axial center line of the fixed cylinder 15, the axial center line of the ball screw 18 and the axial center line of the hollow push rod 20 are all collinear, and the installation is convenient; the fixed cylinder 15 can guide the hollow push rod 20 inside. In this embodiment, the servo motor 12 and the planetary reducer 13 are both commercially available products. The servo motor 12 is connected to the PLC control system set in the basic cabinet 1, and the setting method of the PLC control system itself is the existing technology; the basic cabinet 1 is also equipped with a control panel 24, which is also connected to the PLC control system. The servo motor 12 can be controlled by operating on the control panel 24, so as to achieve precise control of the press-fitting process. The servo motor 12 is controlled to move, so that the ball screw 18 rotates, so that the hollow push rod 20 equipped with the screw nut 19 is lifted and lowered in the fixed cylinder 15, thereby driving the upper clamping plate 7 to descend and press the electrolytic cell or lift it. The lifting drive assembly as a whole can also adopt other linear drive parts of the existing technology.

[0039] Specifically, the driving end of the lifting drive assembly in this embodiment, that is, the lower part of the hollow push rod 20, is connected to the upper lifting seat 6 through a coupling 21 and a pressure sensor 22 arranged in sequence from top to bottom. In this embodiment, the coupling 21 and the pressure sensor 22 are both commercially available products. The pressure sensor 22 is connected to the PLC control system in the basic cabinet 1, and can monitor and measure the feedback of real-time pressure values ​​to ensure operation under rated pressure.

[0040] Specifically, in this embodiment, a protective cover 23 for protecting the lifting drive assembly is provided above the upper fixing plate 3 .

[0041] Working principle:

[0042] When in use, the various components of the electrolytic cell are stacked on the lower clamping plate 5 in sequence, and the lifting drive assembly is controlled to drive the upper lifting seat 6 to descend, so that the upper clamping plate 7 directly presses the electrolytic cell stacked on the lower clamping plate 5; then, an air-tightness detector is used to connect with another opening of the water inlet connecting flow channel 401, another opening of the oxygen outlet connecting flow channel 402, and another opening of the hydrogen outlet connecting flow channel 701 through pipelines, so that the air-tightness detector is connected to the water inlet, oxygen outlet, and hydrogen outlet of the electrolytic cell respectively and performs an air-tightness test; after the air-tightness test is qualified, the compressed electrolytic cell is tightened by the electrolytic cell bolts to complete the assembly of the electrolytic cell; after the assembly of the electrolytic cell is completed, the lifting drive assembly is controlled to drive the upper lifting seat 6 to rise, so that the upper clamping plate 7 is separated from the electrolytic cell so as to remove the assembled electrolytic cell.

Claims

1. An electrolytic cell assembly station, characterized in that: It comprises a basic cabinet (1), a fixed support (2), an upper fixed plate (3), an airtightness detector connecting seat (4), a lower clamping plate (5), a lifting drive component, an upper lifting seat (6) and an upper clamping plate (7); The upper fixing plate (3) is located above the basic cabinet (1) and is connected to the basic cabinet (1) through a plurality of the fixing pillars (2). The airtightness detector connecting seat (4) is installed on the top surface of the basic cabinet (1). The lower clamping plate (5) is installed on the top surface of the airtightness detector connecting seat (4). A water inlet connecting hole (501) and an oxygen outlet connecting hole (502) are respectively provided on the lower clamping plate (5). The water inlet connecting hole (501) is arranged at a position corresponding to and connected to the water inlet of the electrolytic cell to be pressed and fixed. The oxygen outlet connecting hole (502) is arranged at a position corresponding to and connected to the oxygen outlet of the electrolytic cell to be pressed and fixed. A water inlet communication channel (401) and an oxygen outlet communication channel (402) are respectively provided on the instrument communication seat (4); the water inlet communication channel (401) has two openings, and the oxygen outlet communication channel (402) also has two openings; one of the openings of the water inlet communication channel (401) is arranged at a position corresponding to and communicating with the water inlet communication hole (501); one of the openings of the oxygen outlet communication channel (402) is arranged at a position corresponding to and communicating with the oxygen outlet communication hole (502); the other opening of the water inlet communication channel (401) and the other opening of the oxygen outlet communication channel (402) are respectively used to communicate with an external air tightness detector; The lifting drive assembly is installed on the upper fixed plate (3), the upper lifting seat (6) is located between the upper fixed plate (3) and the lower clamping plate (5), the upper clamping plate (7) is connected to the lower side of the upper lifting seat (6) and is located directly above the lower clamping plate (5), the upper lifting seat (6) is driven to lift by the driving end of the lifting drive assembly, the upper clamping plate (7) is provided with a hydrogen outlet connecting flow channel (701), the hydrogen outlet connecting flow channel (701) has two openings, one of the openings of the hydrogen outlet connecting flow channel (701) is set at a position corresponding to the hydrogen outlet of the electrolytic cell to be clamped and fixed, and the other opening of the hydrogen outlet connecting flow channel (701) is used to communicate with an external air tightness detector.

2. The electrolytic cell assembly station according to claim 1, characterized in that: Another opening of the water inlet communicating flow channel (401), another opening of the oxygen outlet communicating flow channel (402), and another opening of the hydrogen outlet communicating flow channel (701) are respectively provided with a switch valve (8).

3. The electrolytic cell assembly station according to claim 1, characterized in that: A plurality of lateral baffles (9) for limiting the position of the electrolytic cell are provided on the outer peripheral surface of the lower clamping plate (5).

4. The electrolytic cell assembly station according to claim 1, characterized in that: A guide rail (10) is installed on each of the fixed pillars (2) in the vertical direction, and a slider is provided on the outer peripheral surface of the upper lifting seat (6) at a position corresponding to each of the guide rails (10), and each of the sliders is slidably connected to the corresponding guide rail (10).

5. The electrolytic cell assembly station according to claim 1, characterized in that: The upper clamping plate (7) and the upper lifting seat (6) are connected via a connecting rod (11).

6. The electrolytic cell assembly station according to claim 1, characterized in that: The lifting drive assembly comprises a servo motor (12), a planetary reducer (13), a cylinder connecting seat (14), a fixed cylinder (15), an upper end cover (16), a lower end cover (17), a ball screw (18), a screw nut (19), and a hollow push rod (20); The fixed cylinder (15) has openings at both the upper and lower ends. A lower end cover (17) is installed on the lower end opening of the fixed cylinder (15). An upper end cover (16) is installed on the upper end opening of the fixed cylinder (15). The cylinder connection seat (14) is installed on the upper end cover (16). The housing of the planetary reducer (13) is installed on the cylinder connection seat (14). The housing of the servo motor (12) is installed on the housing of the planetary reducer (13). The output end of the servo motor (12) is connected to the input end of the planetary reducer (13). The output end of the planetary reducer (13) is connected to the ball screw (18). ), the lower part of the ball screw (18) extends into the fixed cylinder body (15), the lower part of the ball screw (18) located in the fixed cylinder body (15) is connected to the screw nut (19) through a thread, the upper part of the hollow push rod (20) penetrates into the fixed cylinder body (15) and is located on the outside of the ball screw (18), the upper part of the hollow push rod (20) is fixedly connected to the screw nut (19), the lower part of the hollow push rod (20) penetrates from the lower end opening of the fixed cylinder body (15) and the lower end cover (17), and is connected to the upper lifting seat (6) as the driving end of the lifting drive assembly.

7. The electrolytic cell assembly station according to claim 6, characterized in that: The lower end cover (17) is fixedly connected to the upper fixing plate (3).

8. The electrolytic cell assembly station according to claim 6, characterized in that: The axial center line of the fixed cylinder (15), the axial center line of the ball screw (18) and the axial center line of the hollow push rod (20) are all collinear.

9. The electrolytic cell assembly station according to claim 1, characterized in that: The driving end of the lifting drive assembly is connected to the upper lifting seat (6) via a coupling (21) and a pressure sensor (22) which are arranged in sequence from top to bottom.

10. The electrolytic cell assembly station according to claim 1, characterized in that: A protective cover (23) for protecting the lifting drive assembly is provided above the upper fixing plate (3).

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