CN202194855U - Centrifugal blower sealing device - Google Patents
Centrifugal blower sealing device Download PDFInfo
- Publication number
- CN202194855U CN202194855U CN 201120185462 CN201120185462U CN202194855U CN 202194855 U CN202194855 U CN 202194855U CN 201120185462 CN201120185462 CN 201120185462 CN 201120185462 U CN201120185462 U CN 201120185462U CN 202194855 U CN202194855 U CN 202194855U
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- blower fan
- main shaft
- side plate
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a centrifugal blower sealing device, which comprises a fan main shaft, a fan lateral board arranged on the fan main shaft, a lateral board boss integrated with the fan lateral board, a sealing socket surrounding the fan main shaft and an outer seal. The outer seal is installed on the sealing socket, the sealing device further comprises an expansion joint, the sealing socket is integrated with the fan lateral board through the expansion joint, when a fan works under a high temperature condition, the fan is heated and inflated to enable a case center to be risen, the expansion joint can absorb the offset and vibration, so that seal effects of the outer seal can not be influenced. Simultaneously, vibration of the fan lateral board can also be absorbed by the expansion joint, so that using effects of the outer seal can not be influenced.
Description
Technical field
The utility model relates to a kind of matching parts of ventilation equipment, particularly is a kind of centrifugal blower seal arrangement.
Background technique
Centrifugal blower in the past is mainly used in carries innocuous gas or conditioning chamber inner air and outer air; The axis hole of blower fan main shaft leaks can not influence its ventilation effect; But along with being widely used of centrifugal blower, present centrifugal blower also can be used for carrying harmful radioactive air except that being used to carry the innocuous gas; Therefore, the sealing configuration of existing centrifugal blower is difficult to satisfy its seal request.
Centrifugal blower is when carrying high temperature, high pressure, special working medium such as poisonous, harmful, and is very strict to the seal request of ventilator, needs employing dry gas pressure sealing or mechanical seal usually.Dry gas pressure sealing or mechanical seal are because dimensional accuracy is high, and assemblage gap is little, and is therefore very high to the requirement of installing.Higher when blower fan transmission medium temperature, or contain impurity in the medium, or housing is when having vibration, factors such as thermal distortion, impurity particle and high vibration all can damage sealing.
The model utility content
The purpose of the utility model is to provide a kind of rational in infrastructure, service-strong centrifugal blower seal arrangement.
The technological scheme of the utility model is following: a kind of centrifugal blower seal arrangement; Comprise blower fan main shaft, place blower fan side plate on the blower fan main shaft, with into a single integrated structure side plate boss, sealing seat, the external sealed of blower fan side plate around blower fan main shaft; Said external sealed is installed on the sealing seat, and simultaneously, seal arrangement also comprises expansion joint; The diameter of bore of expansion joint is greater than the diameter of blower fan main shaft; One end of expansion joint connects sealing seat, and the other end connects the side plate boss, and sealing seat links into an integrated entity the blower fan side plate through expansion joint.
The beneficial effect of the utility model is: when ventilator was worked under high temperature condition, the expanded by heating distortion made the housing center raise, and can this side-play amount and shock absorption not influenced the sealing effect of outer side sealing through expansion joint; Simultaneously, the vibration of blower fan side plate also can absorb through expansion joint, does not influence the using effect of outer side sealing.
Description of drawings
Fig. 1 is embodiment 1 a structural representation;
Fig. 2 is embodiment 2 a structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Embodiment 1: as shown in Figure 1; A kind of centrifugal blower seal arrangement; Comprise blower fan main shaft 7, place blower fan side plate 6 on the blower fan main shaft, with into a single integrated structure side plate boss 5, sealing seat 2, the external sealed 1 of blower fan side plate 6 around blower fan main shaft 7, said external sealed 1 is installed on the sealing seat 2, said seal arrangement also comprises expansion joint 3; The diameter of bore of said expansion joint 3 is greater than the diameter of blower fan main shaft 7; One end of expansion joint 3 connects sealing seat 2, and the other end connects side plate boss 5, and sealing seat 2 links into an integrated entity through expansion joint 3 and blower fan side plate 6.
Embodiment 2: as shown in Figure 1, and sealing 4 in said side plate boss 5 also is equipped with, interior sealing 4 is used to stop impurity particle, simultaneously, also can reduce pressure, promotes the sealing effect of external sealed, other technologies scheme such as embodiment 1.
Claims (3)
1. centrifugal blower seal arrangement; Comprise blower fan main shaft (7), place blower fan side plate (6) on the blower fan main shaft, with into a single integrated structure side plate boss (5), sealing seat (2), the external sealed (1) of blower fan side plate (6) around blower fan main shaft (7); Said external sealed (1) is installed on the sealing seat (2); It is characterized in that: said seal arrangement also comprises expansion joint (3), and the diameter of bore of said expansion joint (3) is greater than the diameter of blower fan main shaft (7), and an end of expansion joint (3) connects sealing seat (2); The other end connects side plate boss (5), and sealing seat (2) links into an integrated entity through expansion joint (3) and blower fan side plate (6).
2. centrifugal blower seal arrangement according to claim 1 is characterized in that: said side plate boss (5) also is equipped with interior sealing (4).
3. centrifugal blower seal arrangement according to claim 1 is characterized in that: said expansion joint (3) adopts stainless steel or rubber material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120185462 CN202194855U (en) | 2011-06-01 | 2011-06-01 | Centrifugal blower sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120185462 CN202194855U (en) | 2011-06-01 | 2011-06-01 | Centrifugal blower sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194855U true CN202194855U (en) | 2012-04-18 |
Family
ID=45949770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120185462 Expired - Lifetime CN202194855U (en) | 2011-06-01 | 2011-06-01 | Centrifugal blower sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021226352A1 (en) * | 2020-05-07 | 2021-11-11 | Garlock Sealing Technologies, Llc | 3d seal assembly |
-
2011
- 2011-06-01 CN CN 201120185462 patent/CN202194855U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021226352A1 (en) * | 2020-05-07 | 2021-11-11 | Garlock Sealing Technologies, Llc | 3d seal assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |
|
| CX01 | Expiry of patent term |