CN108612666A - Sealing structure on rear side of centrifugal fan casing - Google Patents
Sealing structure on rear side of centrifugal fan casing Download PDFInfo
- Publication number
- CN108612666A CN108612666A CN201611125922.0A CN201611125922A CN108612666A CN 108612666 A CN108612666 A CN 108612666A CN 201611125922 A CN201611125922 A CN 201611125922A CN 108612666 A CN108612666 A CN 108612666A
- Authority
- CN
- China
- Prior art keywords
- seal
- rear side
- centrifugal fan
- fan casing
- sealing structure
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to centrifugal fan fields, and in particular to a kind of centrifugal fan casing rear side sealing structure.A kind of centrifugal fan casing rear side sealing structure includes the seal being connect with casing rear side, the sealing gland being pressed together on seal；The seal and sealing gland are sleeved on main shaft.Compare the prior art, and the present invention has the advantages that：Make the gap shrinks between fan casing and main shaft by increasing seal, airtight and watertight padding and sealing gland, to prevent the leakage of dust particles.
Description
Technical field
The invention belongs to centrifugal fan fields, and in particular to a kind of centrifugal fan casing rear side sealing structure.
Background technology
Centrifugal fan is to improve gas pressure by the mechanical energy of input and supply gas side by side the machinery of body, it be it is a kind of from
Dynamic fluid machinery.Centrifugal blower is widely used in the ventilation of factory, mine, tunnel, cooling tower, vehicle, ship and building, row
Dirt and cooling；The ventilation of boiler and industrial furnace and air inducing；Cooling in the apparatus of air conditioning and domestic electric appliance and ventilation；
It the drying of cereal and selects and recommends；Inflation and propulsion of wind-tunnel wind regime and aircushion vehicle etc..The centrifugal blower of the prior art is mainly stretching out
The transmission shaft of casing and the clearance seal of casing generally use labyrinth sealing or piston ring type seal, or directly use filler
It is sealed.It is cut both ways using this sealing means, labyrinth seal structure is complicated, is not easy to repair, piston ring type seal is not
It is fine, it can be seen that, it is badly in need of the sealing structure that a kind of leakproofness is good, simple in structure.
Invention content
For the above-mentioned prior art, the object of the present invention is to provide sealing structure on rear side of a kind of centrifugal fan casing, contractings
Small gap between fan casing and main shaft, to prevent the leakage of dust particles.To realize the purpose, the present invention is using as follows
Technical solution：
A kind of centrifugal fan casing rear side sealing structure, includes the seal being connect with casing rear side, is pressed together on seal
Sealing gland；The seal and sealing gland are sleeved on main shaft.Seal and sealing gland are first packed into master when assembly
Seal is fixedly connected by axis with casing.
Further, further include having airtight and watertight padding, the airtight and watertight padding is filled between main shaft and seal.Seal and
Airtight and watertight padding is filled between main shaft, and the gap of main shaft and casing is controlled by the power of sealing gland crush seal filler, to
Dust is prevented to pass through the clearance leakage between main shaft and casing.
Further, it is fixedly connected with bolt between the seal and sealing gland.It is bolted easy to disassemble, convenience
Regularly replace airtight and watertight padding.
Further, the bolt matching is equipped with plain washer.Plain washer increases the area of bolt fixed part.
Further, it is welded to connect between seal on rear side of the casing.
Compare the prior art, and the present invention has the advantages that：By increasing seal, airtight and watertight padding and sealing pressure
Lid makes the gap shrinks between fan casing and main shaft, to prevent the leakage of dust particles.
Description of the drawings
Fig. 1 is cross-sectional view of the present invention；
In figure, on rear side of 1- casings, 2- seals, 3- sealing glands, 4- main shafts, 5- airtight and watertight paddings, 6- bolts, 7- plain washers.
Specific implementation mode
With reference to embodiment and attached drawing, the invention will be further described.
A kind of centrifugal fan casing rear side sealing structure, includes the seal 2 being connect on rear side of casing 1, is pressed together on close
Seal the sealing gland 3 on body 2；First the seal 2 and sealing gland 3 are sleeved on main shaft 4 when assembly, airtight and watertight padding 5 is filled out
Enter between seal 2 and main shaft 4, be then pressed into sealing gland 3, is controlled by the power of 3 crush seal filler 5 of sealing gland
The gap of main shaft 4 and casing rear side 1, to prevent dust from passing through the clearance leakage between main shaft and casing；Then bolt 6 is used to fix
Seal 2 and sealing gland 3, for the contact area for increasing between bolt 6 and sealing gland, bolt matching is equipped with plain cushion 7.It replaces
When airtight and watertight padding 5, first 3 bolts 6 are exited, then sealing gland 3 is exited, used airtight and watertight padding 5 is taken out, replaced.
Finally it should be noted that：Above example is only to illustrate the present invention and not limits technology described in the invention
Scheme；Therefore, although this specification with reference to above-mentioned each embodiment to present invention has been detailed description, this
Field it is to be appreciated by one skilled in the art that still can modify to the present invention or equivalent replacement；And all do not depart from this
The technical solution of the spirit and scope of invention and its improvement should all be covered in scope of the presently claimed invention.
Claims (5)
1. sealing structure on rear side of a kind of centrifugal fan casing, it is characterised in that：Including with casing on rear side of（1）The seal of connection
（2）, it is pressed together on seal（2）On sealing gland（3）；The seal（2）And sealing gland（3）It is sleeved on main shaft（4）On.
2. sealing structure on rear side of centrifugal fan casing according to claim 1, it is characterised in that：Further include thering is sealing to fill out
Material（5）, the airtight and watertight padding（5）It is filled in main shaft（4）And seal（2）Between.
3. sealing structure on rear side of centrifugal fan casing according to claim 1, it is characterised in that：The seal（2）
And sealing gland（3）Between use bolt（6）It is fixedly connected.
4. sealing structure on rear side of centrifugal fan casing according to claim 3, it is characterised in that：The bolt（6）Match
It is arranged with plain washer（7）.
5. sealing structure on rear side of centrifugal fan casing according to claim 1, it is characterised in that：On rear side of the casing
（1）With seal（2）Between be welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125922.0A CN108612666A (en) | 2016-12-09 | 2016-12-09 | Sealing structure on rear side of centrifugal fan casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125922.0A CN108612666A (en) | 2016-12-09 | 2016-12-09 | Sealing structure on rear side of centrifugal fan casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108612666A true CN108612666A (en) | 2018-10-02 |
Family
ID=63643481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611125922.0A Pending CN108612666A (en) | 2016-12-09 | 2016-12-09 | Sealing structure on rear side of centrifugal fan casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612666A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513591A (en) * | 2021-08-13 | 2021-10-19 | 重庆通用工业(集团)有限责任公司 | Adjustable sealing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650827U (en) * | 2009-12-08 | 2010-11-24 | 哈尔滨工业大学环保科技股份有限公司 | Lower sealing bearing pedestal used for screw pump |
| CN203641081U (en) * | 2013-11-27 | 2014-06-11 | 魏国宏 | Shock-proof and sealed connecting structure of blower |
| CN104126077A (en) * | 2011-12-19 | 2014-10-29 | 伟尔矿物澳大利亚私人有限公司 | A guard for a rotary pump |
| CN105179300A (en) * | 2015-09-10 | 2015-12-23 | 临涣中利发电有限公司 | Condensate pump shaft seal device |
| CN204942061U (en) * | 2015-09-16 | 2016-01-06 | 镇江市丹徒区双诚风机厂 | Sealing configuration on rear side of centrifugal blower casing |
| US20160097293A1 (en) * | 2014-10-01 | 2016-04-07 | Electro-Motive Diesel, Inc. | Compressor seal assembly for a turbocharger |
-
2016
- 2016-12-09 CN CN201611125922.0A patent/CN108612666A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650827U (en) * | 2009-12-08 | 2010-11-24 | 哈尔滨工业大学环保科技股份有限公司 | Lower sealing bearing pedestal used for screw pump |
| CN104126077A (en) * | 2011-12-19 | 2014-10-29 | 伟尔矿物澳大利亚私人有限公司 | A guard for a rotary pump |
| CN203641081U (en) * | 2013-11-27 | 2014-06-11 | 魏国宏 | Shock-proof and sealed connecting structure of blower |
| US20160097293A1 (en) * | 2014-10-01 | 2016-04-07 | Electro-Motive Diesel, Inc. | Compressor seal assembly for a turbocharger |
| CN105179300A (en) * | 2015-09-10 | 2015-12-23 | 临涣中利发电有限公司 | Condensate pump shaft seal device |
| CN204942061U (en) * | 2015-09-16 | 2016-01-06 | 镇江市丹徒区双诚风机厂 | Sealing configuration on rear side of centrifugal blower casing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513591A (en) * | 2021-08-13 | 2021-10-19 | 重庆通用工业(集团)有限责任公司 | Adjustable sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181002 |