CN213512083U - Sealing sheet for high-temperature high-pressure gas or liquid contact - Google Patents
Sealing sheet for high-temperature high-pressure gas or liquid contact Download PDFInfo
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- CN213512083U CN213512083U CN202022459860.5U CN202022459860U CN213512083U CN 213512083 U CN213512083 U CN 213512083U CN 202022459860 U CN202022459860 U CN 202022459860U CN 213512083 U CN213512083 U CN 213512083U
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Abstract
The utility model discloses a gasket for high temperature high pressure gas or liquid contact belongs to sealing equipment technical field, include: the root part of the sealing sheet is provided with concave tenons which are symmetrical up and down, the middle part of the sealing sheet is provided with an expansion joint, the side surface of the head part is provided with a bending structure which is symmetrical up and down, and the middle part of the head part is provided with a mounting groove which is connected with a matching component; the expansion joints are longitudinally arranged and at least arranged into one group; the expansion joints respectively extend from the outside to the inside from two end faces in the middle of the sealing sheet. The utility model discloses the gasket that sets up is fixed at the root in practical application, and the head inclines to the circumferencial direction, and the middle part is equipped with a plurality of expansion joints for it has radial elasticity, is connected the back of being connected of pivot with the cooperation, and pivot operation in-process produces vibrations, when beating or inflation, the gasket can give elasticity compensation and elasticity and roll back and remain throughout with rotation axis in close contact with, thereby at the cylinder contact surface shutoff medium of gasket and rotation axis contact, and reach the sealed effect that has elasticity compensation.
Description
Technical Field
The utility model relates to a seal structure technical field, concretely relates to gasket that is used for high temperature high pressure gas or liquid contact.
Background
With the development of industrialization, the demand of sealing sheets is increasing as one of the essential important elements of various mechanical devices. For example, a seal sheet plays an important role in high-temperature and high-pressure gas (liquid) dynamic sealing technology of equipment such as steam turbines, gas turbines, rotary engines, natural gas and deep sea petroleum.
The dynamic seal of high-temperature and high-pressure gas mainly comprises soft and hard packing seal, labyrinth seal, piston ring seal and brush seal at present. The core function of the sealing is to reduce the leakage amount of the sealing medium per unit time as much as possible under the same condition.
Aiming at the reasons that the existing sealing has single function, high cost, complex structure and the like, the sealing sheet with wider application range is designed by the scheme.
Disclosure of Invention
The utility model provides a to above-mentioned problem, provide a gasket of high temperature high pressure gas or liquid contact.
The utility model adopts the technical proposal that: the sealing sheet is provided with a concave tenon at the root part and an expansion joint at the middle part, and is provided with a bending structure at the side part of the head part, and the middle part of the head part is provided with a mounting groove connected with a matching component.
Further, the expansion joint is vertically arranged and at least arranged into a group.
Furthermore, the expansion joints are respectively extended from the two end faces of the middle part of the sealing sheet from outside to inside.
Furthermore, the connecting part of the head part and the middle part of the sealing sheet is longitudinally provided with the symmetrical expansion joints.
Still further, the bending structure includes: a first bent fin and a second bent fin;
wherein a gap is reserved between the first bending fin and the second bending fin.
Furthermore, the bending radii of the first bending fin and the second bending fin are different.
Still further, the mounting groove includes: the sealing piece comprises a disturbance groove arranged in the center of the head of the sealing piece and elastic ring grooves symmetrically arranged on two sides of the disturbance groove and positioned at the head of the sealing piece.
Furthermore, the depth of the elastic ring groove is greater than that of the disturbance groove, and the opening radius of the elastic ring groove is less than one third of that of the disturbance groove.
The utility model has the advantages that:
firstly, because the root of the sealing sheet is fixed in practical application, the head is inclined towards the circumferential direction, and the middle part is provided with a plurality of expansion joints, so that the sealing sheet has radial elasticity, and after the sealing sheet is connected with the rotating shaft in a matching way, when the rotating shaft vibrates, jumps or expands in the running process, the sealing sheet can give elastic compensation and elastic rollback and always keeps in close contact with the rotating shaft, so that a medium is blocked on a cylindrical contact surface of the sealing sheet and the rotating shaft, and the sealing effect with the elastic compensation is achieved.
Secondly, the head of the sealing piece is bent to have elasticity, the head of the adjacent sealing piece is in closer contact, and the head of the sealing piece is provided with two fins with different bending radiuses, so that the cross section in the airflow direction is staggered, secondary blocking is formed on a medium, and the sealing effect is better.
Moreover, the elastic ring groove of the sealing piece has two functions, namely, the elastic performance of the sealing piece is improved in an auxiliary mode, and the plastic deformation of the sealing piece is prevented; the function of the disturbance groove is that even a small amount of medium enters the part, a 'rotational flow' is formed at the part, so that the internal energy of the medium flowing is consumed, and the aim of blocking the medium flowing is fulfilled.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
FIG. 1 is a schematic view of the sealing sheet according to the embodiment of the present invention;
fig. 2 is a schematic diagram of a single sealing piece structure according to an embodiment of the present invention.
Reference numerals:
the sealing plate is 1, the tenon is 2, the expansion joint is 3, the first bending fin is 4, the second bending fin is 5, the disturbing groove is 6, and the elastic ring groove is 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 to 2, as shown in fig. 1 to 2, a sealing sheet for high temperature and high pressure gas or liquid contact type, includes: the root of the sealing piece 1 is provided with a concave tenon 2 which is symmetrical up and down, the middle part is provided with an expansion joint 3, the side part of the head is provided with a bending structure which is symmetrical up and down, and the middle part of the head is provided with a mounting groove which is connected with a matching component.
When the sealing pieces are used, the sealing pieces are obliquely arranged around the circumferential direction to form a compact cylindrical surface, and the root parts of the sealing pieces are welded and fixed in the clamping groove of the shell; the sealing sheet is made of heat-resistant and wear-resistant sheet material, the root part of the sealing sheet is provided with vertically symmetrical tenons, the middle part of the sealing sheet is provided with a plurality of expansion joints, the head part of the sealing sheet is provided with two fins with different bending radiuses, the sections of the fins are staggered in the plane direction of the sheet due to the different bending radiuses, the middle part of the head part is provided with an elastic ring groove and a disturbance groove, and the elastic ring which is connected with the sealing sheet in a matched.
In an embodiment of the present invention, the expansion joint 3 is vertically disposed and at least set as a set.
In an embodiment of the present invention, the expansion joint 3 extends from the two end faces of the sealing sheet 1 respectively to the inside and outside.
The utility model discloses an in the embodiment, the head of gasket 1 and the junction at middle part vertically are equipped with the expansion joint 3 of symmetry.
The sealing piece is provided with a plurality of expansion joints, the expansion joints are radially elastic, and after the sealing piece is connected with the rotating shaft in a matched mode, when the rotating shaft vibrates, jumps or expands in the operation process, the sealing piece can give elastic compensation and elastic retraction to always keep close contact with the rotating shaft, so that media are sealed on a cylindrical contact surface of the sealing piece, which is in contact with the rotating shaft, and the sealing effect of the elastic compensation is achieved.
The utility model discloses an in the embodiment, bending structure includes: a first bent fin 4 and a second bent fin 5;
wherein a gap is left between the first bent fin 4 and the second bent fin 5.
In one embodiment of the present invention, the gap is between 1.5mm and 3 mm.
In an embodiment of the present invention, the bending radii of the first bending fin 4 and the second bending fin 5 are different.
The sealing piece head is bent to have elasticity, the sealing piece head is used for enabling the heads of the adjacent sealing pieces to be contacted more tightly, and the sealing piece head is provided with two fins with different bending radiuses, so that the cross sections in the airflow direction are arranged in a staggered mode, secondary blocking is formed on media, and the sealing effect is better.
The utility model discloses an in the embodiment, the mounting groove includes: a disturbing groove 6 arranged at the center of the head part of the sealing sheet and elastic ring grooves 7 symmetrically arranged at the two sides of the disturbing groove 6 and positioned at the head part of the sealing sheet.
In an embodiment of the present invention, the depth of the elastic ring groove 7 is greater than the depth of the disturbance groove 6, and the opening radius of the elastic ring groove 7 is smaller than one third of the opening radius of the disturbance groove 6.
The elastic ring groove of the sealing piece has two functions, namely, the elastic property of the sealing piece is improved in an auxiliary mode, and the plastic deformation of the sealing piece is prevented; the function of the disturbance groove is that even a small amount of medium enters the part, a 'rotational flow' is formed at the part, so that the internal energy of the medium flowing is consumed, and the aim of blocking the medium flowing is fulfilled.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The sealing sheet for high-temperature and high-pressure gas or liquid contact is characterized in that concave tenons which are symmetrical up and down are arranged at the root of the sealing sheet, expansion joints are arranged in the middle of the sealing sheet, bending structures which are symmetrical up and down are arranged at the side of the head of the sealing sheet, and a mounting groove connected with a matched component is arranged in the middle of the head of the sealing sheet.
2. The sealing sheet for contact of high-temperature and high-pressure gas or liquid according to claim 1, wherein the expansion joints are arranged longitudinally and at least in one group.
3. The gasket according to claim 2, wherein the expansion joints extend from the outside to the inside from two end surfaces of the middle of the gasket.
4. The sealing piece for high-temperature and high-pressure gas or liquid contact according to claim 1, wherein the joint between the head part and the middle part of the sealing piece is longitudinally provided with the symmetrical expansion joints.
5. The sealing sheet for high-temperature and high-pressure gas or liquid contact according to claim 1, wherein the folded structure comprises: a first bent fin and a second bent fin;
wherein a gap is reserved between the first bending fin and the second bending fin.
6. The sealing sheet for high temperature and pressure gas or liquid contact according to claim 5, wherein the first bending fin and the second bending fin have different bending radii.
7. The sealing sheet for high-temperature and high-pressure gas or liquid contact according to claim 1, wherein the mounting groove comprises: the sealing piece comprises a disturbance groove arranged in the center of the head of the sealing piece and elastic ring grooves symmetrically arranged on two sides of the disturbance groove and positioned at the head of the sealing piece.
8. The sealing plate for high temperature and pressure gas or liquid contact according to claim 7, wherein the depth of the elastic ring groove is greater than the depth of the perturbation groove, and the opening radius of the elastic ring groove is less than one third of the opening radius of the equal perturbation groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022459860.5U CN213512083U (en) | 2020-10-29 | 2020-10-29 | Sealing sheet for high-temperature high-pressure gas or liquid contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022459860.5U CN213512083U (en) | 2020-10-29 | 2020-10-29 | Sealing sheet for high-temperature high-pressure gas or liquid contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213512083U true CN213512083U (en) | 2021-06-22 |
Family
ID=76414146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022459860.5U Active CN213512083U (en) | 2020-10-29 | 2020-10-29 | Sealing sheet for high-temperature high-pressure gas or liquid contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213512083U (en) |
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2020
- 2020-10-29 CN CN202022459860.5U patent/CN213512083U/en active Active
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