CN220867528U

CN220867528U - PEM electrolytic stack device

Info

Publication number: CN220867528U
Application number: CN202322295754.1U
Authority: CN
Inventors: 周震; 阮清发; 周利勤
Original assignee: Guangdong Qingneng Ruilong New Energy Technology Co ltd
Current assignee: Guangdong Qingneng Ruilong New Energy Technology Co ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-04-30
Anticipated expiration: 2033-08-25

Abstract

The utility model discloses a PEM (PEM) electrolytic stack device which comprises a top-layer end plate, a bottom-layer end plate, a battery pack and a connecting group, wherein the top-layer end plate and the bottom-layer end plate are respectively arranged at the upper end and the lower end of the battery pack, the top-layer end plate comprises an upper end plate and a lower end plate, the upper end plate is connected with the top surface of the lower end plate, the top end of the connecting group is connected with the lower end plate and/or the upper end plate, and the bottom end of the connecting group is connected with the bottom-layer end plate so that the battery pack is pressed between the lower end plate and the bottom-layer end plate. According to the utility model, the single integral top-layer end plate is decomposed into two end plates, so that the weight of the end plate is reduced, the end plate can be installed in a manual carrying mode in a development stage, the development period is greatly saved, the machining cutting amount of the end plate can be reduced, the machining process is greatly simplified, the machining time is shortened, and the cost is saved.

Description

PEM electrolytic stack device

Technical Field

The utility model relates to a PEM electrolytic stack device.

Background

The PEM is a proton exchange membrane and the PEM electrolyser is the core component of an electrolysis system that uses water to produce hydrogen and oxygen. At present, the commercialization of a PEM (proton exchange membrane) electrolytic stack is gradually started, but the cost of the PEM electrolytic stack affects the development of the commercialization of the PEM electrolytic stack, and for the development stage, the working pressure of the PEM electrolytic stack needs to reach 3Mpa, so that the thickness of the end plate of the PEM electrolytic stack is thicker, the PEM electrolytic stack is heavier, the PEM electrolytic stack is difficult to carry by manpower, and the PEM electrolytic stack is long in processing time and high in cost.

Disclosure of utility model

The utility model aims to overcome the defects that an end plate of a PEM electrolytic stack in the prior art is heavy and difficult to install by manual transportation, and has long processing time and high cost.

The utility model solves the technical problems by the following technical scheme:

The utility model provides a PEM electrolysis heap device, its characterized in that, it includes top layer end plate, bottom end plate, group battery and link group, top layer end plate with the bottom end plate set up respectively in the upper and lower both ends of group battery, top layer end plate includes upper end plate and lower end plate, upper end plate connect in the top surface of lower end plate, link group's top connect in lower end plate and/or upper end plate, link group's bottom connect in the bottom end plate, so that the group battery is pressed and is located down between end plate and the bottom end plate.

In the scheme, the single integral end plate is decomposed into two pieces, so that the weight of the end plate is reduced, the end plate can be installed in a manual conveying mode in a development stage, and the development period is saved greatly; meanwhile, only the upper end plate is cut, so that the cutting amount is greatly reduced, the processing procedure is greatly simplified, the processing time is reduced, and the cost is saved.

Preferably, the connection set includes a plurality of fastening screws, a plurality of fastening screws are arranged at intervals and encircle the battery set, and the top end and the bottom end of the fastening screws are respectively connected with the top end plate and the bottom end plate.

In this scheme, adopt above-mentioned structural style, set up and encircle in the group battery through a plurality of fastening lead screw intervals for the group battery installation sets up in a plurality of fastening lead screws, realizes that the installation connection stability of group battery is high, has guaranteed to compress tightly the support of group battery, has improved the fail safe nature of PEM electrolysis heap device greatly. Simultaneously, connect in top layer end plate and bottom end plate through a plurality of fastening lead screws, installation is connected conveniently, and connection stability is high.

Preferably, the lower end plate is provided with a plurality of first through holes, the fastening screw comprises a screw body and a head, the bottom end of the screw body is connected with the bottom end plate, and the top end of the screw body passes through the first through holes and is connected with the head, so that the head abuts against the top surface of the lower end plate.

In the scheme, by adopting the structure, the fastening screw rod is abutted against the lower end plate through the head, and the installation connection can be realized only by connecting the bottom of the screw rod body with the bottom end plate, so that the installation connection is very convenient and quick, and the disassembly is also convenient; meanwhile, the structure is simple.

Preferably, the upper end plate is provided with a plurality of second through holes, the second through holes correspond to the first through holes, and the top end of the screw rod body penetrates through the first through holes and the second through holes and is connected with the head part, so that the head part is propped against the top surface of the upper end plate.

In this scheme, adopt above-mentioned structural style, further realize through fastening lead screw that upper end plate and lower end plate are connected more stably, and easy to assemble.

Preferably, the top surface of the bottom end plate is provided with a plurality of internal threaded holes, and the bottom of the screw rod body is in threaded connection with the internal threaded holes.

In the scheme, the screw rod is in threaded connection with the bottom end plate, so that the screw rod is very convenient to disassemble and assemble; meanwhile, the structure is simple, and the processing and the manufacturing are convenient.

Preferably, the connection set comprises a plurality of gaskets, the gaskets are sleeved on the screw rod body, and the gaskets are pressed between the head and the top-layer end plate.

In the scheme, the structure is adopted to prevent the connection between the parts from loosening, so that the connection of the connection group is fastened and stable, and the good running state of the mechanical equipment is maintained; meanwhile, the arrangement of the gasket reduces the pressure of the connecting part, reduces unnecessary damage and prolongs the service life of parts.

Preferably, the area of the lower end plate is larger than that of the upper end plate, the upper end plate is mounted on the top surface mounting area of the lower end plate, the battery pack is abutted to the bottom surface contact area of the lower end plate, and the projection of the bottom surface contact area along the thickness direction is positioned in the top surface mounting area.

In this scheme, adopt above-mentioned structural style, can alleviate the weight of end plate through reducing the area of upper end plate to easily processing can shorten process time, reduce the cost.

Preferably, the upper end plate is provided with a weight reducing hole penetrating through the upper end plate.

In the scheme, the weight of the upper end plate is reduced by arranging the weight reducing holes, so that the upper end plate can be installed in a manual carrying mode, and the cost is saved; meanwhile, the processing and the manufacturing are very convenient.

Preferably, the bottom surface of the bottom end plate is provided with an upward concave weight-reducing groove.

In this scheme, through setting up the heavy groove that subtracts, make the whole weight of end plate alleviate, make it in the development stage, can realize the mode of artifical transport and install, save the cost.

Preferably, the PEM electrolyser device further comprises a top conductive sheet connected to the top ends of the cell stack and the connection stack.

And/or the PEM electrolyser device further comprises a bottom conductive sheet connected to the bottom ends of the battery and the connection set.

In the scheme, the conductive sheet can play a good role in conduction and catalysis; meanwhile, the conducting strips are connected to the battery pack and the connecting set, so that the connection strength is high, and the battery pack is more stable and reliable.

On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the utility model.

The utility model has the positive progress effects that:

The PEM electrolytic stack device provided by the utility model has the advantages that the single integral top-layer end plate is decomposed into two pieces, so that the weight of the end plate is reduced, the end plate can be installed in a manual conveying mode in a development stage, the development period is greatly saved, the cutting amount of end plate machining can be reduced, the machining process is greatly simplified, the machining time is shortened, and the cost is saved.

Drawings

FIG. 1 is a schematic diagram of a PEM electrolyser device according to an embodiment of the utility model.

FIG. 2 is a schematic bottom view of a PEM electrolyser apparatus according to an embodiment of the utility model.

FIG. 3 is an enlarged schematic view of a portion of a PEM electrolyser apparatus according to an embodiment of the utility model.

Reference numerals illustrate:

Top endplate 1

Upper end plate 11

Lower end plate 12

Bottom end plate 2

Battery pack 3

Connection group 4

Fastening screw 41

Screw body 411

Head 412

Gasket 42

Lightening holes 5

Weight reduction groove 6

Top conductive sheet 7

Top conductive sheet 8

Detailed Description

The utility model will now be more fully described by way of example only and with reference to the accompanying drawings, but the utility model is not thereby limited to the scope of the examples described.

The embodiment of the utility model discloses a PEM (proton exchange membrane) electrolytic stack device, which comprises a top-layer end plate 1, a bottom-layer end plate 2, a battery pack 3 and a connecting group 4, wherein the top-layer end plate 1 and the bottom-layer end plate 2 are respectively arranged at the upper end and the lower end of the battery pack 3, the top-layer end plate 1 comprises an upper end plate 11 and a lower end plate 12, the upper end plate 11 is connected with the top surface of the lower end plate 12, the top end of the connecting group 4 is connected with the lower end plate 12 and/or the upper end plate 11, and the bottom end of the connecting group 4 is connected with the bottom-layer end plate 2, so that the battery pack 3 is pressed between the lower end plate 12 and the bottom-layer end plate 2.

By breaking the top end plate 1 into two pieces, the lower end plate 12 is utilized for abutment and the upper end plate 11 is utilized for ensuring strength requirements so that the weight of the top end plate 1 is greatly reduced. In the development stage, the manual carrying mode can be realized for installation, so that the development period is saved greatly; in addition, during processing, only the upper end plate 11 needs to be cut, the lower end plate 12 does not need to be cut, the cutting amount of the upper end plate 11 is greatly reduced, the processing is easier, the processing procedure is greatly simplified, the processing time is reduced, and the cost is saved.

The connection set 4 includes a plurality of fastening screws 41, the fastening screws 41 are spaced apart and surround the battery set 3, and top and bottom ends of the fastening screws 41 are respectively connected to the top and bottom end plates 1 and 2. The plurality of fastening screw rods 41 are arranged at intervals and encircle the battery pack 3, so that the battery pack 3 is installed and arranged in the plurality of fastening screw rods 41, the high installation connection stability of the battery pack 3 is realized, the compression and the leaning of the battery pack 3 are ensured, and the safety and the reliability of the PEM electrolytic stack device are greatly improved. Simultaneously, connect in top layer end plate 1 and bottom end plate 2 through a plurality of fastening lead screws 41, the installation is connected conveniently, and connection stability is high.

As shown in fig. 3, the fastening screw 41 includes a screw body 411 and a head 412, wherein the bottom end of the screw body 411 is connected to the bottom end plate 2, and the top end of the screw body 411 is connected to the top surface of the lower end plate 12 and/or the upper end plate 11. The lower end plate 12 is provided with a plurality of first through holes, and the upper end plate 11 is provided with a plurality of second through holes, and the second through holes correspond to the first through holes. In a portion of the lower end plate 12 where the upper end plate 11 is not mounted, the top end of the screw body 411 passes through the first through hole and is connected to the head 412 so that the head 412 abuts against the top surface of the lower end plate 12; at a portion of the lower end plate 12 where the upper end plate 11 is mounted, the top end of the screw body 411 passes through the first and second through holes and is connected to the head 412 such that the head 412 abuts against the top surface of the upper end plate 11.

With the adoption of the structure, the fastening screw rod 41 is abutted against the lower end plate 12 through the head, and the installation connection can be realized only by connecting the bottom of the screw rod body 411 with the bottom end plate 2, so that the installation connection is very convenient and quick, and the disassembly is also convenient; simultaneously, the upper end plate 11 and the lower end plate 12 are further connected more stably through the fastening screw rod, and the installation is convenient.

The top surface of the bottom end plate 2 is provided with a plurality of internal threaded holes, and the bottom end of the screw rod body 411 is tapped with threads corresponding to the threaded holes of the bottom end plate 2. The bottom of the screw body 411 is screw-coupled to the internal screw hole. The fastening screw rod 41 and the bottom end plate 2 are in threaded connection, so that the disassembly and assembly are very convenient; meanwhile, the structure is simple, and the processing and the manufacturing are convenient.

The connection group 4 further comprises a plurality of gaskets 42, the gaskets 42 are sleeved on the screw rod body 411, the gaskets 42 are pressed between the head 412 and the top-layer end plate 1, connection loosening between the components is prevented, the connection group 4 is fastened and stable, and good operation state of mechanical equipment is maintained; at the same time, the provision of the spacer 42 reduces the stress on the connection member itself, reducing unnecessary damage and extending the part life.

The upper end plate 11 is mounted to the top surface mounting region of the lower end plate 12, and the battery pack 3 abuts against the bottom surface contact region of the lower end plate 12, the projection of which in the thickness direction is located in the top surface mounting region. In the present embodiment, the area of the lower end plate 12 is larger than the area of the upper end plate 11, and the weight of the top end plate 1 can be reduced by reducing the area of the upper end plate 11, and the processing is easy, and the processing time can be shortened, and the cost can be reduced.

In addition, the upper end plate 11 is a non-reactant contacting end plate, and a stronger material can be used for the upper end plate, reducing the thickness required for the end plate as a whole.

The upper end plate 11 has a lightening hole 5 penetrating therethrough, and in this embodiment, although the lightening hole is cut in the upper end plate 11, a groove or a notch may be cut, or a groove or a notch may be cut in the lower end plate 12, so as to further reduce the overall weight of the top end plate 1.

The bottom surface of the bottom end plate 2 is provided with an upward concave weight-reducing groove 6. By arranging the weight reduction groove 6, the whole weight of the end plate is reduced, and the end plate can be installed in a manual carrying mode in a development stage, so that the cost is saved.

The PEM electrolyser also includes a top conductive sheet 7, the top conductive sheet 7 being attached to the top of the cell stack 3 and the connection stack 4. The PEM electrolyser also includes a bottom conductive sheet 8, the bottom conductive sheet 8 being attached to the bottom ends of the cell stack 3 and the connection stack 4. The top layer conducting strip 7 and the bottom conducting strip 8 are respectively electrically connected with the top and the bottom of the battery pack 3, and the top layer conducting strip 7 and the bottom conducting strip 8 are convenient to electrically connect with the outside, so that the electric connection is very convenient, and the safety is higher.

Specifically, through holes are punched in the top conductive sheet 7 and the bottom conductive sheet 8, and the screw body 411 passes through the through holes to fix them. The conductive sheet can play a good role in conduction and catalysis; meanwhile, the conducting strips are connected to the battery pack 3 and the connecting set 4, so that the connection strength is high, and the connection is stable and reliable.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims

1. The utility model provides a PEM electrolysis heap device, its characterized in that includes top layer end plate, bottom end plate, group battery and link group, the top layer end plate with the bottom end plate set up respectively in the upper and lower both ends of group battery, the top layer end plate includes upper end plate and lower end plate, upper end plate connect in the top surface of lower end plate, link group's top connect in lower end plate and/or upper end plate, link group's bottom connect in the bottom end plate, so that the group battery is pressed and is located down between end plate and the bottom end plate.

2. The PEM electrolyser of claim 1 wherein said connection block includes a plurality of fastening screws spaced around said battery block and having top and bottom ends connected to said top and bottom end plates, respectively.

3. The PEM electrolyser of claim 2 wherein said lower endplate is provided with a plurality of first through holes, said fastening screw includes a screw body and a head, the bottom end of said screw body is connected to said bottom endplate, and the top end of said screw body passes through said first through holes and is connected to said head so that said head abuts against the top surface of said lower endplate.

4. The PEM electrolyser of claim 3 wherein said upper end plate is provided with a plurality of second through holes corresponding to said first through holes, and wherein the top end of said lead screw body passes through said first through holes and said second through holes and is connected to said head portion such that said head portion abuts the top surface of said upper end plate.

5. The PEM electrolyser of claim 4 wherein the top surface of said bottom endplate has a plurality of internally threaded holes, the bottom of said lead screw body being threadably connected to said internally threaded holes.

6. The PEM electrolyser of claim 3 wherein said connection set includes a plurality of shims, said shims being nested in said lead screw body and said shims being compressed between said head and said top endplate.

7. The PEM electrolyser device of claim 1 wherein said upper end plate is mounted to a top surface mounting area of said lower end plate, said stack resting against a bottom surface contact area of said lower end plate, a projection of said bottom surface contact area being located within said top surface mounting area.

8. The PEM electrolyser of claim 1 wherein said upper end plate has weight reducing holes therethrough.

9. The PEM electrolyser device of claim 1 wherein the bottom surface of said bottom endplate has an upwardly recessed weight reduction channel.

10. The PEM electrolyser device of claim 1 further comprising a top-layer conductive sheet connected to the top ends of said stack and said connection set;