CN215799938U

CN215799938U - Electrolytic cell

Info

Publication number: CN215799938U
Application number: CN202121641531.0U
Authority: CN
Inventors: 何秉轩
Original assignee: Wuxi Longji Hydrogen Energy Technology Co ltd
Current assignee: Wuxi Longji Hydrogen Energy Technology Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-02-11
Anticipated expiration: 2031-07-19

Abstract

The utility model relates to an electrolytic cell, including the cylindricality cell body, first end clamp plate (1) and second end clamp plate (2), two tip of cylindricality cell body have the opening, install respectively in two openings of cylindricality cell body first end clamp plate (1) and second end clamp plate (2), electrolytic cell still includes bearing bracket (3), first tensioning screw (4) and second tensioning screw (5), bearing bracket (3) are fixed in the outer wall of cylindricality cell body, first tensioning screw (4) detachably installs between first end clamp plate (1) and bearing bracket (3), second tensioning screw (5) detachably installs between second end clamp plate (2) and bearing bracket (3), in order to hold first end clamp plate (1) and second end clamp plate (2) taut towards bearing bracket (3) respectively. Through above-mentioned technical scheme, the electrolysis trough that this disclosure provided can solve because of the electrolysis trough cell body overlength and lead to the problem that required taut screw rod makes the degree of difficulty high.

Description

Electrolytic cell

Technical Field

The disclosure relates to the technical field of hydrogen production by water electrolysis, in particular to an electrolytic cell.

Background

Commercially common methods for producing hydrogen are: the method comprises the steps of preparing hydrogen by industrial byproducts, preparing hydrogen by water electrolysis, preparing hydrogen by methanol reforming, preparing hydrogen by fossil fuel and the like, wherein the hydrogen preparation by water electrolysis is an important method for preparing hydrogen industrially, and the purity of the hydrogen prepared by the method can reach more than 99 percent.

In a water electrolyzer, the chemical reaction of electrolytic water is completed in an electrolytic cell which is the most basic unit of the electrolyzer, and a plurality of electrolytic cells are compressed between two end pressing plates through a plurality of tension screws. Along with the market demand of GW grade hydrogen production, a single thousand-square grade electrolytic cell becomes the first choice for the rapid development of water electrolysis hydrogen production in the future.

The large-scale of the electrolytic cell inevitably increases the number of the electrolytic cells, and the more the number of the electrolytic cells is increased, the longer the body of the electrolytic cell is, the longer the required length of the tensioning screw rod is, which will cause that the purchase and processing of the tensioning screw rod and the mechanical property, the process property and the heat treatment process of the steel bar become more and more difficult.

SUMMERY OF THE UTILITY MODEL

The purpose of the present disclosure is to provide an electrolytic cell which can solve the problem of high difficulty in manufacturing a required tension screw due to an excessively long cell body of the electrolytic cell.

In order to realize the above-mentioned purpose, this disclosure provides an electrolysis trough, including cylindricality cell body, first end clamp plate and second end clamp plate, two tip of cylindricality cell body have the opening, first end clamp plate with second end clamp plate install respectively in two openings of cylindricality cell body, its characterized in that, the electrolysis trough still includes support bracket, first tensioning screw and second tensioning screw, support bracket is fixed in the outer wall of cylindricality cell body, first tensioning screw detachably install first end clamp plate with between the support bracket, second tensioning screw detachably install second end clamp plate with between the support bracket, with first end clamp plate with second end clamp plate moves towards respectively support bracket is taut.

Optionally, the support bracket is symmetrically provided with two support seats along a vertical central axis thereof, and lower surfaces of the two support seats are flush.

Optionally, the support bracket is arranged at an intermediate position in the length direction of the cylindrical trough body.

Optionally, the first tensioning screw is threadedly connected with the support bracket.

Optionally, the second tensioning screw is threadedly connected with the support bracket.

Optionally, an end of the first tightening screw penetrates through the first end pressing plate and is fastened to the first end pressing plate through a belleville spring and a lock nut.

Optionally, an end of the second tightening screw penetrates the second end pressing plate and is fastened to the second end pressing plate through a belleville spring and a lock nut.

Optionally, the first tightening screws are arranged in a plurality of circumferential intervals along the cylindrical groove, and the number of the second tightening screws is equal to the number of the first tightening screws and is arranged in one-to-one correspondence with the first tightening screws.

Optionally, the first tensioning screw and the second tensioning screw are symmetrically arranged in plurality about a central axis of the cylindrical trough.

By adopting the technical scheme, the electrolytic cell provided by the disclosure is additionally provided with the bearing bracket on the outer wall of the cylindrical cell body of the electrolytic cell, a first tensioning screw and a second tensioning screw are respectively and detachably arranged between the first end pressure plate and the support bracket and between the second end pressure plate and the support bracket, so that the first end pressure plate and the second end pressure plate are tensioned towards the support bracket through the first tensioning screw rod and the second tensioning screw rod, thereby the first end pressure plate and the second end pressure plate are pressed on the opening of the cylindrical tank body, and the problem that the length of the required tension screw is overlong due to the large-scale development of the electrolytic tank can be solved, thereby reducing the purchase and processing of the tension screw rod and the difficulty of the mechanical property, the process property and the heat treatment process of the steel bar, thereby reducing the cost of the electrolytic cell and ensuring the material mechanical property parameters of the tensioning screw more easily. Moreover, by adding a support bracket on the outer wall of the cylindrical body of the electrolytic cell, two electrolytic cells are equivalent to be connected in series, for example, two electrolytic cells with the length of 1000m³The electrolysis baths are connected in series, so that the large combined electrolysis bath can be installed and transportedThe transportation and the manufacture are convenient.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural view of an electrolytic cell provided by an embodiment of the present disclosure, wherein a cylindrical cell body is not shown;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1, showing the first and second tensioning screws in threaded engagement with the support bracket, respectively;

FIG. 3 is a schematic side view of an electrolytic cell provided by embodiments of the present disclosure.

Description of the reference numerals

1-a first end platen; 2-a second end pressing plate; 3-a support bracket; 4-a first tensioning screw; 5-a second tensioning screw; 6-a belleville spring; 7-locking the nut; 8-a first polar plate; 9-a second polar plate; 10-middle plate.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" means "inner and outer" with respect to the corresponding profile of the component itself, unless otherwise specified. In addition, the terms "first," "second," and the like, as used herein, are intended to distinguish one element from another, and are not necessarily sequential or significant. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained. The foregoing definitions are provided to illustrate and describe the present disclosure only and should not be construed to limit the present disclosure.

According to the specific embodiment of the present disclosure, an electrolytic cell is provided, including a cylindrical cell body, a first end pressing plate 1 and a second end pressing plate 2, two ends of the cylindrical cell body have openings, the first end pressing plate 1 and the second end pressing plate 2 are respectively installed at the two openings of the cylindrical cell body, the electrolytic cell further includes a bearing bracket 3, a first tensioning screw 4 and a second tensioning screw 5, the bearing bracket 3 is fixed on the outer wall of the cylindrical cell body, the first tensioning screw 4 is detachably installed between the first end pressing plate 1 and the bearing bracket 3, and the second tensioning screw 5 is detachably installed between the second end pressing plate 2 and the bearing bracket 3, so as to respectively tighten the first end pressing plate 1 and the second end pressing plate 2 towards the bearing bracket 3.

By the technical scheme, the electrolytic cell provided by the disclosure is additionally provided with the bearing bracket 3 on the outer wall of the cylindrical cell body of the electrolytic cell, and a first tension screw 4 and a second tension screw 5 are detachably installed between the first end pressing plate 1 and the support bracket 3 and between the second end pressing plate 2 and the support bracket 3, to pull the first and second

end press plates

1 and 2 toward the support bracket 3 by means of the first and

second pull screws

4 and 5, thereby the first end pressing plate 1 and the second end pressing plate 2 are pressed on the opening of the cylindrical tank body, through the mode, the problem that the length of the required tensioning screw rod is overlong due to the large-scale development of the electrolytic tank is solved, thereby reducing the purchase and processing of the tension screw rod and the difficulty of the mechanical property, the process property and the heat treatment process of the steel bar, thereby reducing the cost of the electrolytic cell and ensuring the material mechanical property parameters of the tensioning screw more easily. Furthermore, by adding the support bracket 3 on the outer wall of the cylindrical body of the electrolytic cell, two electrolytic cells are connected in series, for example, two electrolytic cells with the length of 1000m³The/h electrolytic cells are connected in series, so that the large combined electrolytic cell has convenience in installation, transportation, manufacturing and the like.

In the specific implementation mode that this disclosure provided, can be provided with two supporting seats along its vertical central axis symmetrically on the support bracket 3, the lower surface of two supporting seats flushes to provide the support to the cylindricality cell body, like this, the cylindricality cell body is supported by first end clamp plate 1, support bracket 3 and second end clamp plate 2, prevents the flagging and then leakage scheduling problem of cylindricality cell body that leads to because of gravity, thereby guarantees the security and the reliability of electrolysis trough in the use. Wherein the support bracket 3 may have the same shape as the first end pressing plate 1 and the second end pressing plate 2, which is not particularly limited by the present disclosure. In addition, the cylindrical tank body may have a circular section or a square section, and the first end pressing plate 1, the second end pressing plate 2, and the support bracket 3 may be adaptively designed according to the shape of the cylindrical tank body, which is not particularly limited by the present disclosure.

Wherein, support bracket 3 can arrange the intermediate position on the length direction of cylindricality cell body, like this, two parts that the cylindricality cell body is located support bracket 3 both sides all can support reliably through support bracket 3 to prevent that the cylindricality cell body is located any one in two parts of support bracket 3 both sides and takes place the problem of leaking because of gravity.

In the embodiments provided by the present disclosure, the first tensioning screw 4 and the support bracket 3 may be connected in any suitable manner, such as by fastening with fasteners (e.g., screws, bolts, etc.), in which case the end of the first tensioning screw 4 may be fixedly provided with a connecting flange, and the fasteners may be sequentially passed through the connecting flange and the support bracket 3 to fasten one end of the first tensioning screw 4 to the support bracket 3. In the embodiment shown in fig. 1 and 2, the first tightening screw 4 may be threadedly coupled to the support bracket 3, so that, during installation, the first tightening screw 4 is screwed into a threaded hole provided in the support bracket 3 to complete the coupling of the first tightening screw 4 to the support bracket 3, which is convenient to operate. Furthermore, in some embodiments, the first tensioning screw 4 may also be mounted to the support bracket 3 by any suitable means, such as snapping, plugging, etc., and the disclosure is not limited thereto.

In the specific embodiment provided by the present disclosure, the end of the first tightening screw 4 penetrates through the first end pressing plate 1 and is fastened to the first end pressing plate 1 through the belleville spring 6 and the lock nut 7 to press the first end pressing plate 1 against the cylindrical groove body, thereby sealing the opening of the cylindrical groove body on the left side (in the drawing plane direction of fig. 1). In addition, a sealing structure may be disposed between the first end pressing plate 1 and the cylindrical tank body for preventing the electrolyte in the cylindrical tank body from leaking, which is not particularly limited by the present disclosure.

In the embodiments provided by the present disclosure, the second tensioning screw 5 and the support bracket 3 may be connected in any suitable manner, for example, by fastening with fasteners (e.g., screws, bolts, etc.), in which case, the end of the second tensioning screw 5 may be fixedly provided with a connecting flange, and the fasteners are sequentially passed through the connecting flange and the support bracket 3 to fasten one end of the second tensioning screw 5 to the support bracket 3. In the embodiment shown in fig. 1 and 2, the second tightening screw 5 can be screwed with the support bracket 3, so that when the second tightening screw 5 is screwed into the threaded hole formed on the support bracket 3, the connection between the second tightening screw 5 and the support bracket 3 can be completed, and the operation is convenient. Furthermore, in some embodiments, the second tensioning screw 5 may be mounted to the support bracket 3 by any suitable means, such as clamping, plugging, and the like, which is not specifically limited by the present disclosure.

In the specific embodiment provided by the present disclosure, the end of the second tightening screw 5 penetrates through the second end pressing plate 2 and is fastened to the second end pressing plate 2 through a belleville spring 6 and a lock nut 7 to press the second end pressing plate 2 against the cylindrical groove body, thereby sealing the opening of the cylindrical groove body on the right side (in the drawing plane direction of fig. 1). In addition, a sealing structure may be disposed between the second end pressing plate 2 and the cylindrical tank body for preventing the electrolyte in the cylindrical tank body from leaking out, which is not particularly limited by the present disclosure.

In the specific embodiment provided by the present disclosure, referring to fig. 1 and 3 in combination, the first tightening screws 4 are provided in plurality at intervals along the circumferential direction of the cylindrical tank, and the second tightening screws 5 are equal in number to the first tightening screws 4 and arranged in one-to-one correspondence to the first tightening screws 4, so as to securely and fixedly mount the first end pressing plate 1 and the second end pressing plate 2 to both ends of the cylindrical tank, respectively, so that the cylindrical tank has good pressure resistance and sealing property.

The first tensioning screw 4 and the second tensioning screw 5 are symmetrically arranged in a plurality of numbers about the central axis of the cylindrical tank body, and by the arrangement mode, the cylindrical tank body can be uniformly stressed, and the appearance of the electrolytic tank is more attractive.

In the present disclosure, a first pole plate 8 is fixedly disposed on the first end pressing plate 1, a first terminal (not shown) is welded on the first pole plate 8, the first terminal is used for connecting a negative electrode of a rectification power supply, a second pole plate 9 is fixedly disposed on the second end pressing plate 2, a second terminal (not shown) is welded on the second pole plate 9, and the second terminal is used for connecting a positive electrode of the rectification power supply, so as to provide electrolysis electric energy for the electrolytic cell. A plurality of middle polar plates 10 are arranged between the first polar plate 8 and the second polar plate 9 side by side, wherein one surface of each middle polar plate 10 is an anode polar plate, the other surface is a cathode polar plate, in any two adjacent middle polar plates 10, the anode polar plate of one middle polar plate 10 is arranged opposite to the cathode polar plate of the other middle polar plate 10 so as to divide the cylindrical tank body into a plurality of electrolysis cells, in the electrolysis process, electrolyte is uniformly filled in each electrolysis cell, cathode products of each electrolysis cell are discharged through a cathode product outlet arranged on the cylindrical tank body, and anode products of each electrolysis cell are discharged through an anode product outlet arranged on the cylindrical tank body.

The electrolytic cell provided by the present disclosure can be used in any electrolysis occasions such as hydrogen production by electrolyzing water, and the present disclosure does not specifically limit the same.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides an electrolytic bath, includes cylindricality cell body, first end clamp plate and second end clamp plate, two tip of cylindricality cell body have the opening, first end clamp plate with second end clamp plate install respectively in two openings of cylindricality cell body, a serial communication port, electrolytic bath is still including holding bracket, first taut screw and the taut screw of second, it is fixed in to hold the bracket the outer wall of cylindricality cell body, first taut screw detachably install first end clamp plate with hold between the bracket, the taut screw detachably of second install second end clamp plate with hold between the bracket, with will first end clamp plate with second end clamp plate moves towards respectively it is taut to hold the bracket.

2. The electrolytic cell of claim 1 wherein said support bracket has two support seats symmetrically disposed about its vertical central axis, the lower surfaces of said two support seats being flush.

3. The electrolytic cell of claim 2 wherein the support bracket is disposed at an intermediate position in the length direction of the cylindrical cell body.

4. The cell of claim 1 wherein said first tension screw is threadably connected to said support bracket.

5. The cell of claim 1 wherein said second tension screw is threadably connected to said support bracket.

6. The electrolytic cell of claim 1 wherein the end of the first tensioning screw extends through the first end pressure plate and is fastened to the first end pressure plate by a belleville spring and a lock nut.

7. The electrolytic cell of claim 1 wherein the end of the second tensioning screw extends through the second end clamp plate and is fastened to the second end clamp plate by a belleville spring and a lock nut.

8. The electrolytic cell according to any one of claims 1 to 7, wherein the first tension screws are provided in plurality at intervals in the circumferential direction of the cylindrical cell body, and the second tension screws are equal in number to the first tension screws and arranged in one-to-one correspondence with the first tension screws.

9. The electrolytic cell of claim 8 wherein the first tension screw and the second tension screw are arranged in plurality symmetrically about a central axis of the cylindrical tank body.