CN102478023A - Fan adopting welded case - Google Patents
Fan adopting welded case Download PDFInfo
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- CN102478023A CN102478023A CN2010105603628A CN201010560362A CN102478023A CN 102478023 A CN102478023 A CN 102478023A CN 2010105603628 A CN2010105603628 A CN 2010105603628A CN 201010560362 A CN201010560362 A CN 201010560362A CN 102478023 A CN102478023 A CN 102478023A
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- main shaft
- blower fan
- fan
- welding casing
- bearing
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Abstract
The invention discloses a fan adopting a welded case. The structure of the fan comprises a welded case, an impeller, a fan spindle, a spindle sealing structure and a spindle bearing. The fan is characterized in that the shell of the spindle sealing structure is fixedly connected with the bearing box of the spindle bearing; the shell of the spindle sealing structure is connected with the welded case through an elastic part. By using the fan provided by the invention, the problems that the axiality of sealing device is worsen caused by the deformation of the welded case, correspondingly the tightness is reduced and the service life is shortened even the tightness becomes invalid, can be solved. According to the invention, the case is allowed to deform in three-dimensional direction in a certain range, so that the tightness and the service life of the sealing device are not affected and the fan can be widely used in the fields such as energy power, petrochemical industry, metallurgy and the like.
Description
Technical field
The present invention relates to gas transportation facilities, more particularly relate to a kind of blower fan in the industrial fields such as energy source and power, petrochemical industry, metallurgy, that adopt welding casing that is widely used in.
Background technique
Ventilator, blower, turbocompressor are being brought into play and important effect at industrial fields such as energy source and power, petrochemical industry, metallurgy.Mostly conventional fan, especially blower and turbocompressor are the casting casing, but actual production finds that the cast form cycle of casting casing is long, materials are many, cost is high, and especially the casting of special material is difficult to control.
Welding casing has effectively shortened the manufacturing cycle, the few and reduction of saving mold expense, cost of materials, and these advantages make it obtain increasing application.But simultaneous problem is: at present, the gland seal device of blower fan all is and the casing location and installation, and welding casing is yielding, causes seal arrangement coaxality variation, thereby causes sealability to descend, and reduce working life, even causes seal arrangement to lose efficacy.Enterprise's stop frequency is increased, and maintenance is frequent, has had a strong impact on production.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology deficiency, a kind of blower fan that adopts welding casing being provided, in the hope of solving in the running because the problem of the seal arrangement coaxality variation that the casing distortion causes.
Technical solution problem of the present invention adopts following technological scheme:
The present invention adopts the structure of the blower fan of welding casing to include in forming: welding casing, impeller, blower fan main shaft, main shaft sealing construction and main shaft bearing; Its structural feature is that the housing that main shaft sealing construction is set is to be fixedly connected with the bearing housing of said main shaft bearing, between the housing of main shaft sealing construction and welding casing, is to connect with elastic component.
The present invention adopts the structural feature of the blower fan of welding casing also to be:
Said elastic component is a bellows, is respectively arranged with the end face flange at the two ends of said bellows, and said bellows is to be connected through bolt with the housing and the welding casing of main shaft sealing construction respectively with its end face flange.
The fitting surface that the wheel hub of blower fan main shaft and impeller is set is a cone match.
The end face flange of said bellows is to install in the inboard of fan casing.
Be provided with between blower fan main shaft and the impeller to being threaded, and the connecting thread of blower fan main shaft is set to the direction and the blower fan main shaft direction of rotation of screw thread.
Said main shaft bearing adopts sliding bearing.
Compared with present technology, beneficial effect of the present invention is embodied in:
The present invention is provided with bellows and realizes resilient connection between main shaft sealing construction and welding casing; Make welding casing allow three-dimensional distortion within the specific limits; Do not influence the sealing and the working life thereof of seal arrangement in the time of distortion, can be widely used in industrial fields such as energy source and power, petrochemical industry, metallurgy.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is flexible connecting structure schematic representation between main shaft sealing construction of the present invention and the casing.
Label among the figure: 1 welding casing, 2 impellers, 3 bellowss, 4 main shaft sealing constructions, 5 main shaft bearings, 6 blower fan main shafts, 7 balancer shafts, 8 seal rings.
Embodiment
Referring to Fig. 1, Fig. 2 in the present embodiment, includes in the structure composition by the conventionally form setting: welding casing 1, impeller 2, blower fan main shaft 6, main shaft sealing construction 4, main shaft bearing 5 and balancer shaft 7; In the present embodiment, the housing that main shaft sealing construction 4 is set is to be fixedly connected with the bearing housing of main shaft bearing 5, between the housing of main shaft sealing construction 4 and welding casing 1, is to connect with elastic component.
Shown in Figure 2; In the present embodiment; Elastic component is a bellows 3, is respectively arranged with the end face flange at the two ends of bellows 3, and bellows 3 one ends connect through bolt with its end face flange and casing 1; And between casing 1 and this end face flange, be provided with " O " RunddichtringO 8, can not leak gas in bellows 3 connection place guaranteeing with casing 1; Between the housing of bellows 3 and main shaft sealing construction 4, be to connect through bolt with a pair of flange, install gasket seal additional between the interconnective a pair of flange, can not leak gas with assurance.The resilient connection of bellows makes and allows the casing distortion within the specific limits, guaranteed the coaxality of sealing.
In the practical implementation, in order further to improve functional reliability, the stationarity of blower fan running, and be convenient to dismounting, structural type further also comprises:
With the fitting surface employing cone match of blower fan main shaft 6, be convenient to the dismounting of impeller 2 with impeller 2 wheel hubs.
The end face flange of bellows 3 is to install in the inboard of fan casing 1, dismantles impeller 2, bellows 3, main shaft sealing construction 4 vertically successively, and need not move fan casing 1.
Main shaft sealing construction 4 can adopt carbocyclic ring to add the sealing means of blanket gas, and separation structure in the housing employing level of main shaft sealing construction 4 is so that the sealing maintenance.
In the screw connection structure between blower fan main shaft 6 and impeller 2, the connecting thread of blower fan main shaft is set to the direction and main shaft 6 direction of rotation of screw thread, and when tightening the back rotation, impeller 2 can not become flexible, and only can change tighter and tighter.
Main shaft bearing 5 adopts sliding bearing, so that the high-speed smooth operation.
Claims (6)
1. adopt the blower fan of welding casing, its structure includes in forming: welding casing (1), impeller (2), blower fan main shaft (6), main shaft sealing construction (4) and main shaft bearing (5); The housing that it is characterized in that being provided with said main shaft sealing construction (4) is to be fixedly connected with the bearing housing of said main shaft bearing (5), between the housing of main shaft sealing construction (4) and welding casing (1), is to connect with elastic component.
2. the blower fan of employing welding casing according to claim 1; It is characterized in that said elastic component is bellows (3); Two ends at said bellows (3) are respectively arranged with the end face flange, and said bellows (3) is to be connected through bolt with the housing and the welding casing (1) of main shaft sealing construction (4) respectively with its end face flange.
3. the blower fan of employing welding casing according to claim 1 and 2, the fitting surface that it is characterized in that being provided with blower fan main shaft (6) and the wheel hub of impeller (2) is a cone match.
4. the blower fan of employing welding casing according to claim 1 and 2, the end face flange that it is characterized in that said bellows (3) are to install in the inboard of fan casing (1).
5. the blower fan of employing welding casing according to claim 1 and 2 it is characterized in that being provided with between blower fan main shaft (6) and the impeller (2) for being threaded, and the connecting thread of blower fan main shaft is set to the direction and blower fan main shaft (6) direction of rotation of screw thread.
6. the blower fan of employing welding casing according to claim 1 and 2 is characterized in that said main shaft bearing (5) adopts sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105603628A CN102478023A (en) | 2010-11-26 | 2010-11-26 | Fan adopting welded case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105603628A CN102478023A (en) | 2010-11-26 | 2010-11-26 | Fan adopting welded case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102478023A true CN102478023A (en) | 2012-05-30 |
Family
ID=46090760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105603628A Pending CN102478023A (en) | 2010-11-26 | 2010-11-26 | Fan adopting welded case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478023A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835994A (en) * | 2014-03-07 | 2014-06-04 | 巴克约根森风机（宁波）有限公司 | Fan with conical-ended transmission shaft |
| CN105065320A (en) * | 2015-07-21 | 2015-11-18 | 上海通用风机股份有限公司 | Sealing device with corrugated pipe |
| CN108757547A (en) * | 2018-04-15 | 2018-11-06 | 天津长瑞大通流体控制***有限公司 | Blower Housing is set to keep the sealing structure and method of stabilized seal in vibration |
| CN108843616A (en) * | 2018-07-23 | 2018-11-20 | 深圳市能源环保有限公司 | A kind of odour seal device of garbage incinerating power plant centrifugal blower |
| CN117823454A (en) * | 2023-12-29 | 2024-04-05 | 无锡艾尔泰科压缩机有限公司 | Integrated high-pressure carbon ring shaft seal structure and centrifugal compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1126723A2 (en) * | 1983-08-05 | 1984-11-30 | Предприятие П/Я М-5841 | Centrifugal pump |
| CN2448966Y (en) * | 2000-09-06 | 2001-09-19 | 李相国 | Centrifugal ventilation fan |
| JP2004116454A (en) * | 2002-09-27 | 2004-04-15 | Furukawa Co Ltd | Shaft sealing device for pump |
| CN101033754A (en) * | 2007-04-12 | 2007-09-12 | 济南风机厂有限责任公司 | Flexible joining fan sealing device |
| CN201546998U (en) * | 2009-10-15 | 2010-08-11 | 宝钢集团新疆八一钢铁有限公司 | Improved air suction tube of draught fan |
| CN201650840U (en) * | 2010-04-22 | 2010-11-24 | 江苏双达工程技术研究中心有限公司 | Axially moving double-end face mechanical seal for pumps |
-
2010
- 2010-11-26 CN CN2010105603628A patent/CN102478023A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1126723A2 (en) * | 1983-08-05 | 1984-11-30 | Предприятие П/Я М-5841 | Centrifugal pump |
| CN2448966Y (en) * | 2000-09-06 | 2001-09-19 | 李相国 | Centrifugal ventilation fan |
| JP2004116454A (en) * | 2002-09-27 | 2004-04-15 | Furukawa Co Ltd | Shaft sealing device for pump |
| CN101033754A (en) * | 2007-04-12 | 2007-09-12 | 济南风机厂有限责任公司 | Flexible joining fan sealing device |
| CN201546998U (en) * | 2009-10-15 | 2010-08-11 | 宝钢集团新疆八一钢铁有限公司 | Improved air suction tube of draught fan |
| CN201650840U (en) * | 2010-04-22 | 2010-11-24 | 江苏双达工程技术研究中心有限公司 | Axially moving double-end face mechanical seal for pumps |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835994A (en) * | 2014-03-07 | 2014-06-04 | 巴克约根森风机（宁波）有限公司 | Fan with conical-ended transmission shaft |
| CN105065320A (en) * | 2015-07-21 | 2015-11-18 | 上海通用风机股份有限公司 | Sealing device with corrugated pipe |
| CN108757547A (en) * | 2018-04-15 | 2018-11-06 | 天津长瑞大通流体控制***有限公司 | Blower Housing is set to keep the sealing structure and method of stabilized seal in vibration |
| CN108843616A (en) * | 2018-07-23 | 2018-11-20 | 深圳市能源环保有限公司 | A kind of odour seal device of garbage incinerating power plant centrifugal blower |
| CN117823454A (en) * | 2023-12-29 | 2024-04-05 | 无锡艾尔泰科压缩机有限公司 | Integrated high-pressure carbon ring shaft seal structure and centrifugal compressor |
| CN117823454B (en) * | 2023-12-29 | 2024-05-28 | 无锡艾尔泰科压缩机有限公司 | Integrated high-pressure carbon ring shaft seal structure and centrifugal compressor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120530 |