CN211088405U

CN211088405U - Be provided with sealing washer of boss

Info

Publication number: CN211088405U
Application number: CN201922408758.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Kunhou Energy Storage Technology Co ltd
Current assignee: Kunhou Energy Storage Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-07-24
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a sealing ring with a boss, the shape of the sealing ring is rectangular or similar to a rectangle, the boss is arranged on the sealing ring on the straight line part of the rectangle, and the protruding direction of the boss is vertical to the plane of the rectangular sealing ring; the cross section of the sealing ring of the rectangular straight line part is T-shaped. The characteristics to iron chromium redox flow battery capacious, electrolyte be acid, the utility model designs a sealing washer of novel structure for the sealed of sheet frame and diaphragm. The sealing structure with the boss increases the contact area between the sealing ring and the plate frame, and one surface pressing the diaphragm has no boss and larger area, so that the sealing effect is good, and the damage of the diaphragm can not be caused; the utility model discloses select the EPDM material to make the sealing washer, can use in acid liquid and do not corrode, can prevent the seepage of liquid effectively simultaneously.

Description

Be provided with sealing washer of boss

Technical Field

The utility model belongs to the technical field of the energy storage, concretely relates to seal structure of battery.

Background

The redox flow battery is a large-scale electrochemical energy storage device, wherein liquid electrolytes are used for positive and negative electrodes, the electrolytes of the positive and negative electrodes are respectively circulated by a diaphragm or a clapboard, and redox reaction is generated in an inert electrode in a positive electrode chamber or a negative electrode chamber surrounded by a battery frame. The battery frame can be made of engineering plastics and the like, and the inert electrode can be made of carbon felt and the like, so that the structural material of the flow battery is low in price, the battery can achieve extremely large capacity and ensure safety, and the battery is flexible in charging and discharging and capacity adjusting.

Because the redox flow battery adopts liquid electrolyte, the problems of large flow channel resistance reduction, strict sealing requirement of a battery outer frame and corrosion resistance of a battery structural material are brought while the capacity is flexible. When the flow battery runs, electrolyte can be driven by an electrolyte pump with larger pressure to enter each single cell unit, the traditional sealing technology only has the advantage that the area of the bottom of a sealing ring is sealed by a pressed surface, the sealing effect cannot be achieved sometimes, the conditions of air leakage and liquid leakage can be generated, and the overall quality of a product is seriously influenced.

SUMMERY OF THE UTILITY MODEL

Weak point to prior art exists, the utility model aims at providing a be provided with the sealing washer of boss in order to increase sealed pressurized area, improve sealing performance.

Realize the utility model discloses the technical scheme of above-mentioned purpose does:

a sealing ring with a boss is rectangular or approximately rectangular, the boss is arranged on the sealing ring on the straight line part of the rectangle, and the protruding direction of the boss is perpendicular to the plane of the rectangular sealing ring; the cross section of the sealing ring of the rectangular straight line part is T-shaped.

The part of the sealing ring at the arc of the four corners has no boss because the length size of the sealing ring cannot be particularly precise, and the boss at the edge is not easy to assemble when being processed.

Furthermore, four corners of the rectangle are arcs.

Preferably, the width of the boss is 1/2 the cross-sectional width of the sealing ring.

Wherein, the height of boss is 1/4 of sealing washer cross section height.

The utility model discloses an optimal technical scheme does, sealing washer cross section width is 3.5 ~ 4.5mm, 1.5 ~ 1.8mm of sealing washer cross section height.

The sealing ring is made of ethylene propylene diene monomer, and the compression ratio is 15-25%.

The sealing ring is arranged on one surface of the plate frame, and a groove for placing the sealing ring is formed in the plate frame; the relative position of two adjacent sheet frames respectively places a this sealing washer, and the one side that does not have the boss is relative. And pressing a diaphragm between the two sealing rings provided with the bosses.

The beneficial effects of the utility model reside in that:

the characteristics to iron chromium redox flow battery capacious, electrolyte be acid, the utility model designs a sealing washer of novel structure for the sealed of sheet frame and diaphragm. The sealing structure with the boss increases the contact area between the sealing ring and the plate frame, and one surface pressing the diaphragm has no boss and larger area, so that the sealing effect is good, the assembly is easy, and the damage of the diaphragm can not be caused after long-term operation; the utility model discloses select the EPDM material to make the sealing washer, can use in acid liquid and do not corrode, can prevent the seepage of liquid effectively simultaneously.

Drawings

Fig. 1 is a front view of a seal ring provided with a boss according to embodiment 1 of the present invention.

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a partially enlarged view.

In the figure, 1 is a seal ring provided with a boss, 101 is a seal ring of a straight line portion, 102 is a circular arc portion, 2 is a boss, and 3 is a face pressing a diaphragm.

Detailed Description

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings; the terminology used is for the purpose of describing the invention only and is not intended to be limiting, nor is it intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation; and therefore should not be construed as limiting the scope of the invention.

In the examples, the technical means used are all the technical means existing in the field, unless otherwise specified.

Example 1

The embodiment provides a seal ring 1 provided with a boss, which is used for sealing a redox flow battery, and referring to fig. 1 and fig. 2, the seal ring is rectangular, a seal ring 101 on the straight line part of the rectangle is provided with a boss 2, and the direction of the boss is perpendicular to the plane of the seal ring rectangle; the cross section of the sealing ring of the rectangular straight line part is T-shaped. The four corners of the rectangle are arcs. The circular arc shaped portion 102 is not provided with a boss.

Referring to fig. 3, the width of the boss 2 is 1/2 of the cross-sectional width of the seal ring. The height of the boss 2 is 1/4 of the cross-section height of the sealing ring. The side of the boss facing away from the diaphragm is the side 3 that presses the diaphragm. Referring to fig. 2, the width of the two sides of the boss is 0.98mm, and the width of the boss is 2.05 ± 0.02 mm.

In the embodiment, the width of the cross section of the sealing ring is 4.0-4.25 mm, and the height of the cross section of the sealing ring is 1.6 mm.

In the embodiment, the length and the width of the sealing ring are 620 × 350mm, the radius R14.50mm of the arc-shaped part 102, the sealing ring is made of Ethylene Propylene Diene Monomer (EPDM) material, the Shore hardness is 60, the compression ratio is 15%, and the weight is 12.93 g.

The sealing structure with the boss increases the contact area between the sealing ring and the plate frame, and one surface pressing the diaphragm has no boss and larger area, so that the sealing effect is good, the assembly is easy, and the damage of the diaphragm can not be caused after long-term operation; the utility model discloses select the EPDM material to make the sealing washer, can use in acid liquid and do not corrode, can prevent the seepage of liquid effectively simultaneously.

Example 2

The embodiment provides a sealing ring 1 provided with a boss, which is used for sealing a redox flow battery, wherein the sealing ring is rectangular, the boss 2 is arranged on a sealing ring 101 on the straight line part of the rectangle, and the protruding direction of the boss is perpendicular to the plane of the rectangle of the sealing ring; the cross section of the sealing ring of the rectangular straight line part is T-shaped. The four corners of the rectangle are arcs. The circular arc shaped portion 102 is not provided with a boss.

The width of the boss 2 is 1/2 of the cross section width of the sealing ring. The height of the boss 2 is 1/4 of the cross-section height of the sealing ring. The side of the boss facing away from the diaphragm is the side 3 that presses the diaphragm.

In this embodiment, the width of the cross section of the sealing ring is 3.8 mm plus or minus 0.2mm, and the height of the cross section of the sealing ring is 1.5 mm.

In the embodiment, the length and width of the sealing ring are 580 × 320mm, the radius R13.5mm of the arc-shaped part 102, the sealing ring is made of Ethylene Propylene Diene Monomer (EPDM), the Shore hardness is 60, and the compression ratio is 18%.

Although the present invention has been described above by way of examples, it should be understood by those skilled in the art that modifications and variations of the present invention are within the scope of the present invention without departing from the spirit and nature of the present invention.

Claims

1. A sealing ring with a boss is characterized in that the sealing ring is rectangular or approximately rectangular, the boss is arranged on the sealing ring on the straight line part of the rectangle, and the protruding direction of the boss is perpendicular to the plane of the rectangular sealing ring; the cross section of the sealing ring of the rectangular straight line part is T-shaped.

2. The convex sealing ring according to claim 1, wherein the four corners of the rectangle are circular arcs.

3. The seal ring provided with a boss according to claim 1, wherein the boss has a width of 1/2 of the seal ring cross-sectional width.

4. The seal ring provided with a boss according to claim 1, wherein the height of the boss is 1/4 of the cross-sectional height of the seal ring.

5. The seal ring with the boss according to any one of claims 1 to 4, wherein the seal ring has a cross-sectional width of 3.5 to 4.5mm and a cross-sectional height of 1.5 to 1.8 mm.

6. A seal ring with a boss according to any one of claims 1 to 4, wherein the seal ring is made of ethylene propylene diene monomer, and the compression ratio is 15 to 25%.