CN207500179U - A kind of novel casing shaft seal structure - Google Patents
A kind of novel casing shaft seal structure Download PDFInfo
- Publication number
- CN207500179U CN207500179U CN201721551591.7U CN201721551591U CN207500179U CN 207500179 U CN207500179 U CN 207500179U CN 201721551591 U CN201721551591 U CN 201721551591U CN 207500179 U CN207500179 U CN 207500179U
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- Prior art keywords
- cover board
- carbon ring
- connecting plate
- ring seal
- casing
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Abstract
The utility model discloses a kind of novel casing shaft seal structures, including cover board and carbon ring seal, cover board is monoblock type, cover board is connect by stud with casing back side panel, carbon ring seal includes connecting plate and babinet, and connecting plate is that monoblock type, cover board and connecting plate install protheca in main shaft in impeller, babinet is upper and lower subdivision structure, carbon ring seal and cover board site welding.Existing large centrifugal fan is in order to install, it is convenient to repair rotor, casing uses subdivision structure, when previous carbon ring seal site welding is at axis hole, the sealing material being easily destroyed at housing Hough, and it is adjusted for the ease of scene, there are gaps between carbon ring seal and half flange, easily gas leakage, at the same time for the ease of later stage rotor maintenance, connecting plate need to be disconnected along casing Hough direction, gap also easy gas leakage, and the utility model is that cover board is increased between casing and carbon ring seal, and cover board and connecting plate are overall structure, solves the problems, such as gas leakage well.
Description
Technical field
The utility model is related to centrifugal blower technical field, specially a kind of novel casing shaft seal structure.
Background technology
With the propulsion of China's process of industrialization, the positive Efforts To Develop of industrial trade is energy-saving, carries out industrial upgrading and whole
Recombination is closed, industrial foundation equipment needs a large amount of updates.Important corollary equipment of the centrifugal blower as industry, will more be applied to
The fields such as electric power, cement, petrochemical industry, coal, mine and environmental protection.Under new economic development situation, following centrifugal blower row
Industry will continue to keep increasing faster.
Centrifugal blower is widely used in the ventilation of factory, mine, tunnel, cooling tower, vehicle, ship and building, boiler and
The ventilation of industrial furnace and air inducing, cooling and ventilation in the apparatus of air conditioning and domestic electric appliance, the drying and choosing of cereal
It send, these all embody the importance of centrifugal blower.The also ventilation blower of focus on the application specific use is such as used for power plant and oil plant
Desulfurization wind turbine, coke oven gas fan, conveying gas medium is containing the harmful gas such as hydrogen sulfide, coal gas, You Haiqi
Body is leaked by wind turbine in air, and serious influence can be caused on the security of the lives and property, it is therefore necessary to using rational sealing
Structure, the stringent gas leakage for controlling wind turbine.
The main structural components of centrifugal blower are impellers, casing, main shaft, and impeller need to pass through machine in casing internal, transmission shaft
Shell endoporus stretches into inside and is connect with impeller, since there are gaps between casing endoporus and transmission shaft, is easiest to gas leakage herein
Place, therefore the leakiness that sealing quality herein will directly affect gas, widely used at present is carbon ring sealing structure, and
The sealing structure is that site welding after good position is adjusted in assembling, is easily destroyed peripheral sealing rope, and this structure is in axle envelope
Also there are gaps for surrounding, have a small amount of gas leakage, it is therefore desirable to which a kind of new casing shaft seal structure replaces.
Utility model content
The purpose of this utility model is to provide a kind of novel casing shaft seal structure, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical solution：A kind of novel casing shaft seal structure, including lid
Plate and carbon ring seal, the cover board are monolithic construction, and the cover board is connect by stud with casing back side panel；The carbocyclic ring is close
Package includes connecting plate and babinet, and the connecting plate installs protheca for monolithic construction, the cover board and the connecting plate in impeller
In main shaft, the babinet is upper and lower subdivision structure, the carbon ring seal and cover board site welding.
Preferably, the stud welding is on casing back side panel.
Preferably, also it is welded with band steel circle on the casing back side panel.
Preferably, the connecting plate site welding is on the cover board.
Preferably, the band steel circle is made of stainless steel.
Compared with prior art, the beneficial effects of the utility model are：The utility model is skillfully constructed, simple in structure, existing
There is large centrifugal fan convenient for installation, maintenance rotor, casing uses subdivision structure, and previous carbon ring seal site welding exists
When at axis hole, the sealing material that is easily destroyed at housing Hough, and being adjusted for the ease of scene, carbon ring seal and half flange it
Between there are gaps, easily gas leakage, at the same time for the ease of later stage rotor maintenance, connecting plate need to be disconnected along casing Hough direction,
Gap also easy gas leakage, and the utility model is that cover board is increased between casing and carbon ring seal, and cover board and connecting plate are
Overall structure solves the problems, such as gas leakage well.
Description of the drawings
Fig. 1 is centrifugal fan structure schematic diagram of the prior art；
Fig. 2 is the utility model partial structurtes enlarged drawing.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Referring to Fig. 1, for centrifugal fan structure schematic diagram of the prior art：The main knot of centrifugal blower in the prior art
Structure component is impeller 8, and casing 9, main shaft 10, for impeller 8 inside casing 9, main shaft 10 need to stretch into internal and leaf by 9 endoporus of casing
8 connection of wheel, is the place for being easiest to gas leakage herein since there are gaps between 9 endoporus of casing and main shaft, therefore being sealed herein
The bad leakiness that will directly affect gas.
Referring to Fig. 2, the utility model provides following technical solution：A kind of novel casing shaft seal structure, including 1 He of cover board
Carbon ring seal 2, the cover board 1 are monolithic construction, and the cover board 1 is connect by stud 3 with casing back side panel 4, and stud 3 welds
On casing back side panel 4；The carbon ring seal 2 includes connecting plate 5 and babinet 6, and the connecting plate 5 is monolithic construction, described
Cover board 1 and the connecting plate 5 install protheca in main shaft in impeller, and 5 site welding of connecting plate is on cover board 1；The babinet 6
For upper and lower subdivision structure, the carbon ring seal 2 and 1 site welding of cover board；Band steel circle 7, band steel are also welded on casing back side panel 4
Circle 7 is made of stainless steel.
Before impeller installation, cover board and connecting plate are sleeved in main shaft in advance, cover board and the processing of band steel circle contact plane, installation
Ensure that gas does not leak afterwards, after carbon ring seal adjustment good position, finally connecting plate welding on the cover board.
The utility model is skillfully constructed, simple in structure, and existing large centrifugal fan is convenient for installation, maintenance rotor, machine
Shell is using subdivision structure, when previous carbon ring seal site welding is at axis hole, the sealing material that is easily destroyed at housing Hough,
And adjusted for the ease of scene, there are gap, easily gas leakage between carbon ring seal and half flange, at the same time for the ease of rear
Phase rotor maintenance, connecting plate are disconnected along casing Hough direction, the also easy gas leakage of connecting plate gap, and the utility model is in machine
Cover board is increased between shell and carbon ring seal, and cover board and connecting plate are overall structure, solve the problems, such as gas leakage well.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of novel casing shaft seal structure, including cover board（1）And carbon ring seal（2）, it is characterised in that：The cover board（1）For
Monolithic construction, the cover board（1）Pass through stud（3）With casing back side panel（4）Connection；The carbon ring seal（2）Including connection
Plate（5）And babinet（6）, the connecting plate（5）For monolithic construction, the cover board（1）With the connecting plate（5）It is installed in impeller
Protheca is in main shaft, the babinet（6）For upper and lower subdivision structure, the carbon ring seal（2）With cover board（1）Site welding.
2. a kind of novel casing shaft seal structure according to claim 1, it is characterised in that：The stud（3）It is welded on machine
Shell back side panel（4）On.
3. a kind of novel casing shaft seal structure according to claim 1, it is characterised in that：The casing back side panel（4）On
Also it is welded with band steel circle（7）.
4. a kind of novel casing shaft seal structure according to claim 1, it is characterised in that：The connecting plate（5）Site welding
It is connected in cover board（1）On.
5. a kind of novel casing shaft seal structure according to claim 3, it is characterised in that：The band steel circle（7）Using not
Rust steel material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551591.7U CN207500179U (en) | 2017-11-20 | 2017-11-20 | A kind of novel casing shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551591.7U CN207500179U (en) | 2017-11-20 | 2017-11-20 | A kind of novel casing shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207500179U true CN207500179U (en) | 2018-06-15 |
Family
ID=62504937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721551591.7U Active CN207500179U (en) | 2017-11-20 | 2017-11-20 | A kind of novel casing shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207500179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676295A (en) * | 2017-11-20 | 2018-02-09 | 南通大通宝富风机有限公司 | A kind of novel casing shaft seal structure |
-
2017
- 2017-11-20 CN CN201721551591.7U patent/CN207500179U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676295A (en) * | 2017-11-20 | 2018-02-09 | 南通大通宝富风机有限公司 | A kind of novel casing shaft seal structure |
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