CN220060003U - Mechanical seal structure and air-blower for air-blower - Google Patents
Mechanical seal structure and air-blower for air-blower Download PDFInfo
- Publication number
- CN220060003U CN220060003U CN202321532017.2U CN202321532017U CN220060003U CN 220060003 U CN220060003 U CN 220060003U CN 202321532017 U CN202321532017 U CN 202321532017U CN 220060003 U CN220060003 U CN 220060003U
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- stationary ring
- ring
- blower
- stationary
- gland
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- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 210000004907 gland Anatomy 0.000 claims description 38
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Abstract
The utility model adopts a mechanical sealing structure for a blower and the blower, wherein the mechanical sealing structure comprises a shaft sleeve and a sealing component, the shaft sleeve is sleeved on an air pipe of the blower, and the sealing component is sleeved on one side of the shaft sleeve, which is away from the blower; the sealing assembly comprises a movable ring, a first static ring and a second static ring which are arranged at two ends of the movable ring, wherein the movable ring and the shaft sleeve are connected into a rotary integrated structure through a flat key so as to enable the movable ring to rotate along with the shaft sleeve; the first stationary ring and the second stationary ring are in sliding connection with the shaft sleeve, so that the first stationary ring and the second stationary ring keep static when the shaft sleeve rotates; the first stationary ring and the second stationary ring share the movable ring, which is beneficial to improving the sealing stability of the mechanical sealing structure and improving the deformation sealing performance under high pressure and high sliding speed.
Description
Technical Field
The utility model relates to the technical field of blower sealing, in particular to a mechanical sealing structure for a blower and the blower.
Background
Mechanical seals (mechanical seals) are means for preventing fluid leakage consisting of at least one pair of end faces perpendicular to the axis of rotation that remain in close and relative sliding engagement under the influence of fluid pressure and the elastic force (or magnetic force) of the compensating mechanism and the auxiliary seal.
The mechanical seal is a shaft seal device of a rotary machine. Such as centrifugal pumps, centrifuges, kettles, compressors and the like. Since the drive shaft extends through the device and is thus located inside and outside the device, there is a circumferential gap between the shaft and the device through which the medium in the device leaks outwards, and if the pressure in the device is below atmospheric pressure, air leaks into the device, so that a shaft seal means for preventing leakage is necessary.
The current mechanical sealing structure for the blower is usually a non-stationary mechanical seal with a double-end embedded sealing ring and a common spring, the circumferential axial dimensions of all parts are compact, sealing failure exists in the using process, leakage phenomenon is caused, and the sealing reliability is low.
Therefore, there is a need for a mechanical seal structure for a blower and a blower that can solve the above-described problems.
Disclosure of Invention
In order to overcome the problems, the utility model provides a mechanical sealing structure for a blower and the blower, wherein a first static ring and a second static ring share a movable ring, which are beneficial to improving the sealing stability of the mechanical sealing structure and the deformation sealing performance under high pressure and high sliding speed.
In a first aspect, the present utility model provides a mechanical seal structure for a blower, the mechanical seal structure comprising:
the shaft sleeve is sleeved on the air pipe of the blower;
the sealing component is sleeved on one side of the shaft sleeve, which is away from the blower; the sealing assembly comprises a movable ring, a first static ring and a second static ring which are arranged at two ends of the movable ring, wherein the movable ring and the shaft sleeve are connected into a rotary integrated structure through a flat key so as to enable the movable ring to rotate along with the shaft sleeve; the first stationary ring and the second stationary ring are slidably coupled to the sleeve such that the first stationary ring and the second stationary ring remain stationary as the sleeve rotates.
In some embodiments of the present utility model, the first stationary ring and the second stationary ring are symmetrically disposed at two sides of the moving ring, and the moving ring is slidingly connected with the first stationary ring and the second stationary ring.
In some embodiments of the present utility model, a first stationary ring seat is disposed on a side of the first stationary ring facing away from the moving ring, and a first gland is disposed on a side of the first stationary ring seat facing away from the first stationary ring; the first gland and the first stationary ring seat are provided with a first spring therebetween, and the first spring is in a compressed state so that the first stationary ring seat and the first stationary ring are close to the movable ring.
In some embodiments of the present utility model, a second stationary ring seat is disposed on a side of the second stationary ring facing away from the moving ring, and a second gland is disposed on a side of the second stationary ring seat facing away from the second stationary ring; and a second spring is arranged between the second gland and the second stationary ring seat, and the second spring is in a compressed state so that the second stationary ring seat and the second stationary ring are close to the movable ring.
In some embodiments of the present disclosure, a side of the first gland facing away from the first stationary ring seat is a medium side, and a side of the second gland facing away from the second stationary ring seat is an atmosphere side.
In some embodiments of the present disclosure, the mechanical seal structure includes a seal cavity cover fixed on the first gland and the second gland to enclose with the first gland, the second gland, the first stationary ring seat, the second stationary ring seat, the first stationary ring, the second stationary ring, and the moving ring to form a seal cavity.
In some embodiments of the utility model, the seal cavity cover is connected to the first gland and the second gland by set screws.
In some embodiments of the present utility model, the first stationary ring and the second stationary ring have the same structure, and the first stationary ring seat and the second stationary ring seat have the same structure.
In some embodiments of the present utility model, the first stationary ring and the second stationary ring are symmetrically disposed at both sides of the moving ring.
In a second aspect, the utility model also provides a blower, comprising the mechanical sealing structure.
The beneficial effects of the utility model are as follows: the utility model adopts a mechanical sealing structure for a blower and the blower, wherein the mechanical sealing structure comprises a shaft sleeve and a sealing component, the shaft sleeve is sleeved on an air pipe of the blower, and the sealing component is sleeved on one side of the shaft sleeve, which is away from the blower; the sealing assembly comprises a movable ring, a first static ring and a second static ring which are arranged at two ends of the movable ring, wherein the movable ring and the shaft sleeve are connected into a rotary integrated structure through a flat key so as to enable the movable ring to rotate along with the shaft sleeve; the first stationary ring and the second stationary ring are in sliding connection with the shaft sleeve, so that the first stationary ring and the second stationary ring keep static when the shaft sleeve rotates; the first stationary ring and the second stationary ring share the movable ring, which is beneficial to improving the sealing stability of the mechanical sealing structure and improving the deformation sealing performance under high pressure and high sliding speed.
Drawings
FIG. 1 is a schematic structural diagram of a mechanical seal structure according to an embodiment of the present utility model;
fig. 2 is an enlarged schematic view of the portion a of fig. 1 in accordance with the present utility model.
Specific element symbol description:
100-shaft sleeve, 200-sealing component, 210-moving ring, 220-flat key, 230-first stationary ring, 240-first stationary ring seat, 250-first gland, 260-second stationary ring, 270-second stationary ring seat, 280-second gland, 300-sealing cavity cover, 310-set screw, 320-sealing cavity.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. The following detailed description of the embodiments of the utility model, provided in the accompanying drawings, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Furthermore, the terms "horizontal," "vertical," "overhang" and the like do not denote a requirement that the component be absolutely horizontal or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 and 2, fig. 1 shows a schematic structural diagram of a mechanical seal structure provided in this embodiment, and fig. 2 shows an enlarged partial a schematic diagram of fig. 1. The present embodiment provides a mechanical seal structure for a blower, which includes a shaft sleeve 100 and a seal assembly 200. The shaft sleeve 100 is sleeved on the air pipe of the blower; the sealing assembly 200 is sleeved on one side of the shaft sleeve 100, which is away from the blower; the seal assembly 200 includes a moving ring 210, and a first stationary ring 230 and a second stationary ring 260 disposed at both ends of the moving ring 210, the moving ring 210 and the shaft sleeve 100 being connected in a rotation-integrated structure by a flat key 220 so that the moving ring 210 rotates with the shaft sleeve 100; the first stationary ring 230 and the second stationary ring 260 are slidably coupled to the hub 100 such that the first stationary ring 230 and the second stationary ring 260 remain stationary as the hub 100 rotates. The first stationary ring 230 and the second stationary ring 260 share the ring 210, which is advantageous in improving the sealing stability of the mechanical seal structure and in improving the deformation sealing performance under high pressure and high sliding speed. The flat key 220 is adopted to drive between the movable ring 210 and the shaft sleeve 100, so that the driving is more reliable.
The mechanical seal structure in this embodiment is a container type double-end-face balance type seal structure, and a stationary structure with face-to-face design is adopted. In some embodiments, the moving ring 210 is made of cemented carbide material, and has high strength; the moving ring 210 is of unitary ring construction design, avoiding stress induced deformation.
In some embodiments of the present utility model, please continue to refer to fig. 1 and 2, the first stationary ring 230 and the second stationary ring 260 in the present embodiment are symmetrically disposed at two sides of the moving ring 210, and the moving ring 210 is slidably connected with the first stationary ring 230 and the second stationary ring 260.
In some embodiments of the present utility model, please continue to refer to fig. 1 and 2, a first stationary ring 230 seat is disposed on a side of the first stationary ring 230 facing away from the moving ring 210, and a first gland 250 is disposed on a side of the first stationary ring 230 seat facing away from the first stationary ring 230; a first spring is disposed between the first gland 250 and the first stationary ring 230 seat, and the first spring is in a compressed state, so that the first stationary ring 230 seat and the first stationary ring 230 are close to the moving ring 210.
In some embodiments of the present utility model, please continue to refer to fig. 1 and 2, a second stationary ring 260 seat is disposed on a side of the second stationary ring 260 facing away from the moving ring 210, and a second gland 280 is disposed on a side of the second stationary ring 260 seat facing away from the second stationary ring 260; a second spring is disposed between the second gland 280 and the second stationary ring 260 seat, and the second spring is in a compressed state, so that the second stationary ring 260 seat and the second stationary ring 260 are close to the moving ring 210. The two spring structures are arranged, and compared with a single spring, the sealing surface is more uniformly stressed.
In some embodiments of the present utility model, referring to fig. 1 and 2, a side of the first gland 250 facing away from the seat of the first stationary ring 230 is a medium side, and a side of the second gland 280 facing away from the seat of the second stationary ring 260 is an atmosphere side.
In some embodiments of the present utility model, referring to fig. 1 and 2, the mechanical seal structure in this embodiment includes a seal cavity 320 cover 300, where the seal cavity 320 cover 300 is fixed on the first gland 250 and the second gland 280 to form a seal cavity 320 with the first gland 250, the second gland 280, the first stationary ring 230 seat, the second stationary ring 260 seat, the first stationary ring 230, the second stationary ring 260, and the moving ring 210.
In some embodiments of the present utility model, referring to fig. 1 and 2, the seal cavity 320 of the present embodiment is connected to the first gland 250 and the second gland 280 by a set screw 310.
In some embodiments of the present utility model, please continue to refer to fig. 1 and 2, the first stationary ring 230 and the second stationary ring 260 in the present embodiment have the same structure, and the first stationary ring 230 seat and the second stationary ring 260 seat have the same structure.
In some embodiments of the present utility model, please continue to refer to fig. 1 and 2, the first stationary ring 230 and the second stationary ring 260 in the present embodiment are symmetrically disposed at two sides of the moving ring 210.
Further, in order to better implement the mechanical seal structure in the embodiment of the present utility model, the present utility model further provides a blower, which includes the mechanical seal structure in any of the above embodiments, on the basis of the mechanical seal structure.
While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements and adaptations of the utility model may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within the present disclosure, and therefore, such modifications, improvements, and adaptations are intended to be within the spirit and scope of the exemplary embodiments of the present disclosure.
Meanwhile, the present utility model uses specific words to describe embodiments of the present utility model. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the utility model. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the utility model may be combined as suitable.
Similarly, it should be noted that in order to simplify the description of the present disclosure and thereby aid in understanding one or more inventive embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof. This method of disclosure, however, is not intended to imply that more features than are required by the subject utility model. Indeed, less than all of the features of a single embodiment disclosed above.
In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations in some embodiments for use in determining the breadth of the range, in particular embodiments, the numerical values set forth herein are as precisely as possible.
Each patent, patent application publication, and other material, such as articles, books, specifications, publications, documents, etc., cited herein is hereby incorporated by reference in its entirety except for any application history file that is inconsistent or otherwise conflict with the present disclosure, which places the broadest scope of the claims in this application (whether presently or after it is attached to this application). It is noted that the description, definition, and/or use of the term in the appended claims controls the description, definition, and/or use of the term in this utility model if the description, definition, and/or use of the term in the appended claims does not conform to or conflict with the present disclosure.
The foregoing has outlined the detailed description of the embodiments of the present utility model, and the detailed description of the principles and embodiments of the present utility model is provided herein by way of example only to facilitate the understanding of the method and core concepts of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.
Claims (10)
1. A mechanical seal structure for a blower, the mechanical seal structure comprising:
the shaft sleeve is sleeved on the air pipe of the blower;
the sealing component is sleeved on one side of the shaft sleeve, which is away from the blower; the sealing assembly comprises a movable ring, a first static ring and a second static ring which are arranged at two ends of the movable ring, wherein the movable ring and the shaft sleeve are connected into a rotary integrated structure through a flat key so as to enable the movable ring to rotate along with the shaft sleeve; the first stationary ring and the second stationary ring are slidably coupled to the sleeve such that the first stationary ring and the second stationary ring remain stationary as the sleeve rotates.
2. The mechanical seal for a blower according to claim 1, wherein the first stationary ring and the second stationary ring are symmetrically disposed on both sides of the moving ring, and the moving ring is slidably connected to the first stationary ring and the second stationary ring.
3. The mechanical seal structure for a blower according to claim 2, wherein a first stationary ring seat is provided on a side of the first stationary ring facing away from the moving ring, and a first gland is provided on a side of the first stationary ring seat facing away from the first stationary ring; the first gland and the first stationary ring seat are provided with a first spring therebetween, and the first spring is in a compressed state so that the first stationary ring seat and the first stationary ring are close to the movable ring.
4. The mechanical seal structure for a blower according to claim 3, wherein a second stationary ring seat is provided on a side of the second stationary ring facing away from the moving ring, and a second gland is provided on a side of the second stationary ring seat facing away from the second stationary ring; and a second spring is arranged between the second gland and the second stationary ring seat, and the second spring is in a compressed state so that the second stationary ring seat and the second stationary ring are close to the movable ring.
5. The mechanical seal of claim 4, wherein a side of the first gland facing away from the first stationary ring seat is a media side and a side of the second gland facing away from the second stationary ring seat is an atmospheric side.
6. The mechanical seal for a blower of claim 4, comprising a seal cavity cover secured to the first gland and the second gland to enclose the first gland, the second gland, the first stationary ring seat, the second stationary ring seat, the first stationary ring, the second stationary ring, and the moving ring to form a seal cavity.
7. The mechanical seal for a blower according to claim 6, wherein the seal chamber cover is connected to the first gland and the second gland by a set screw.
8. The mechanical seal for a blower according to claim 3, wherein the first stationary ring and the second stationary ring have the same structure, and the first stationary ring seat and the second stationary ring seat have the same structure.
9. The mechanical seal for a blower of claim 8, wherein the first stationary ring and the second stationary ring are symmetrically disposed on both sides of the movable ring.
10. A blower comprising the mechanical seal of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321532017.2U CN220060003U (en) | 2023-06-15 | 2023-06-15 | Mechanical seal structure and air-blower for air-blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321532017.2U CN220060003U (en) | 2023-06-15 | 2023-06-15 | Mechanical seal structure and air-blower for air-blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220060003U true CN220060003U (en) | 2023-11-21 |
Family
ID=88766216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321532017.2U Active CN220060003U (en) | 2023-06-15 | 2023-06-15 | Mechanical seal structure and air-blower for air-blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220060003U (en) |
-
2023
- 2023-06-15 CN CN202321532017.2U patent/CN220060003U/en active Active
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