CN206738224U - A kind of sealing structure of air blower - Google Patents
A kind of sealing structure of air blower Download PDFInfo
- Publication number
- CN206738224U CN206738224U CN201720507061.6U CN201720507061U CN206738224U CN 206738224 U CN206738224 U CN 206738224U CN 201720507061 U CN201720507061 U CN 201720507061U CN 206738224 U CN206738224 U CN 206738224U
- Authority
- CN
- China
- Prior art keywords
- sealing
- gas
- tooth
- sealing tooth
- air blower
- 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 - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
For above-mentioned technical problem existing for planting-opener in the prior art, the utility model proposes a kind of sealing structure of air blower of lift-off seal effect, including sealing tooth, the sealing tooth is inclined to set, inwards tilted by the outside of fan shaft, and baffler is connected with the termination of the sealing tooth.The adjustment of the structure is for direct vertical connection seals tooth, add the barrier face area that sealing tooth forms barrier to gas, and bigger barrier will make gas form bigger vortex, and the formation of vortex can reduce its energy of flow, and because the termination for sealing tooth is connected to baffler, when gas flows to the cavity that two sealing teeth are formed from the gap that sealing tooth is formed, limited to by baffler, gas can form stronger vortex, and the formation of vortex is substantially that have lost the energy of gas, it is more beneficial for reducing gas pressure, the technique effect of barrier gas leak is realized in optimization.
Description
Technical field
A kind of air blower is the utility model is related to, more particularly to a kind of sealing structure of air blower.
Background technology
Impeller on blower rotor rotates at a high speed in the stator of air blower to be compressed to conveying gas, after compressing
Gas discharged by the outlet pipe on outlet casing, in order to prevent the gas that is conveyed from producing leakage reversed flow in stator interior,
It is typically provided with fan shaft and stator binding site and is made by the metal materials such as aluminium alloy, cast iron or polytetrafluoroethylene (PTFE), carbocyclic ring
Labyrinth sealing body.
Wherein labyrinth seal is that several belt sealing teeth being arranged in order, shape between tooth and tooth are set around fan shaft
Throttle effect is produced when by the gap in tortuous labyrinth to reach with expansion cavity, sealed medium into a series of gaps of damming
The purpose of Drain Resistance, but labyrinth seal of the prior art is all relatively easy due to sealing toothing（Such as Figure of description
Shown in figure one）, have in terms of realization prevents gas leakage to be strengthened.
The purpose of this utility model is intended to provide corresponding technical scheme for above-mentioned technical problem, it is intended to solves relative
The technical problem answered and optimize as far as possible.
Utility model content
For above-mentioned technical problem existing for planting-opener in the prior art, the utility model proposes lift-off seal effect
A kind of sealing structure of air blower, its technical scheme are as follows：
A kind of sealing structure of air blower, including sealing tooth, the sealing tooth is inclined to set, by the outside of fan shaft
Inwards tilt, and baffler is connected with the termination of the sealing tooth.
Pass through above-mentioned technical proposal：Due to the sealing tooth described in the technical program be by fan shaft outside inwardly
Side is inclined, is substantially exactly to be obliquely installed with the flow direction contrary of gas, and the adjustment of the structure is relative to directly vertical
For connection sealing tooth, the barrier face area that sealing tooth forms barrier to gas is added, and bigger barrier will make gas
Bigger vortex is formed, and the formation of vortex can reduce its energy of flow, and because the termination for sealing tooth is connected to baffler, when
When gas flows to the cavity that two sealing teeth are formed from the gap that sealing tooth is formed, limited to by baffler, gas can shape
Into stronger vortex, and the formation of vortex is substantially that have lost the energy of gas, is more beneficial for reducing gas pressure, optimization is real
Now obstruct the technique effect of gas leak.
The technical program is further arranged to：The termination of sealing tooth is connected in the middle part of described group of dividing plate.
Pass through above-mentioned technical proposal：It is substantially equivalent to all set barrier on the cavity both sides that sealing tooth is formed
Plate, the realization of more favourable the technical program final effect.
The technical program is further arranged to：Some dividing plates are provided with the sealing tooth.
Pass through above-mentioned technical proposal：Barrier is advantageously formed by the setting of dividing plate, strengthens gas swirl.
The technical program is further arranged to：The angle of inclination of the sealing tooth is between 45 ° to 60 °.
Pass through above-mentioned technical proposal：It is described sealing tooth angle of inclination should not set it is excessive, otherwise can not be well to gas
Body forms restriction effect, but be also not suitable for setting it is too small, it is too small to be just unable to reach the technology to be reached required by the technical program
Effect, it is more suitable to be disposed between 45 ° to 60 °, preferably 60 ° of the technical program.
The technical program is further arranged to：The sealing tooth is in ladder pattern distribution, and by the inside facing outward of fan shaft
The continuous lifting in side.
Pass through above-mentioned technical proposal：The flowing of slope climbing type is carried out equivalent to gas in step type, this process is more favourable
In reducing gas pressure energy, as pressure reduces, gas leakage can also reduce.
The technical program is further arranged to：The outer surface of the sealing tooth and baffler is all in frosted structure setting.
Pass through above-mentioned technical proposal：The outer surface of frosted is advantageous to increase the friction between gas and contact surface, and this
Process can consume gas flow energy.
The technical program is further arranged to：Sealing tooth is arranged between 6-12 teeth.
Pass through above-mentioned technical proposal：Although seal clearance is smaller, the sealing number of teeth is more, and its sealing effectiveness will be better, so
And after the sealing number of teeth increases to certain amount, effect improves and unobvious, and therefore, the sealing number of teeth should not be excessive.
Brief description of the drawings
Fig. 1 is the structural representation of original technology scheme；
Fig. 2 is the utility model structure diagram.
In figure：1st, tooth is sealed；2nd, baffler；3rd, dividing plate；4th, gas flow direction.
Embodiment
Reference picture two is explained to the technical program：
A kind of sealing structure of air blower, including sealing tooth 1, the sealing tooth 1 is inclined to set, by the outer of fan shaft
Side inwards tilts, and is connected with baffler 2 in the termination of the sealing tooth 1.
It is that air-flow receives once when gas flows through the gap that sealing tooth 1 is formed with axle surface firstly the need of what is known
Throttling action, the pressure and temperature of air-flow declines, and flow velocity increase.Air-flow after gap, be two sealing teeth 1 formed compared with
Big cavity.Gas increases suddenly in cavity internal volume, forms very strong vortex, and kinetic energy is because vortex is all changed into heat, heating
In itself, therefore, gas is in this cavity, and temperature has been returned to before throttling, but pressure is gone up seldom, it is believed that protects for gas
Hold pressure when flowing through gap.Gas is often by a gap and subsequent larger cavity, and air-flow is just once throttled and dilatation
Effect, due to eddy loss, energy, gas pressure constantly decline, and as pressure reduces, gas leakage reduces.
And the sealing tooth 1 described in the technical program be it is inwards inclined by the outside of fan shaft, substantially
It is to be obliquely installed with the flow direction contrary of gas, the adjustment of the structure increases for direct vertical connection seals tooth 1
Sealing tooth 1 has been added to form the barrier face area of barrier to gas, and bigger barrier will make gas form bigger vortex, and
The formation of vortex can reduce its energy of flow, and because the termination for sealing tooth 1 is connected to baffler 2, when gas is from sealing tooth 1 institute
When the gap of formation flows to the cavity that two sealing teeth 1 are formed, by the limitation of baffler 2, gas can form stronger vortex,
And the formation of vortex is substantially that have lost the energy of gas, it is more beneficial for reducing gas pressure, optimization is realized outside barrier gas
The technique effect let out.
The termination of sealing tooth 1 is connected in the middle part of described group of dividing plate, is substantially equivalent to the cavity formed in sealing tooth 1
Both sides have all set baffler 2, the realization of more favourable the technical program final effect.
Some dividing plates are provided with the sealing tooth 1, barrier is advantageously formed by the setting of dividing plate, strengthens gas whirlpool
Rotation.
Between 45 ° to 60 °, the angle of inclination of the sealing tooth 1 should not be set at the angle of inclination of the sealing tooth 1
Greatly, otherwise restriction effect can not be formed to gas well, but be also not suitable for setting it is too small, it is too small to be just unable to reach this technology side
The technique effect to be reached required by case, it is more suitable to be disposed between 45 ° to 60 °, and the technical program is preferred
60°。
The sealing tooth 1 is in ladder pattern distribution, and by the continuous lifting in inside facing outward side of fan shaft, in stepped suitable
The flowing of slope climbing type is carried out in gas, this process is more beneficial for reducing gas pressure energy, and as pressure reduces, gas is let out
Leakage can also reduce.
The outer surface of the sealing tooth 1 and baffler 2 is all in frosted structure setting, and the outer surface of frosted is advantageous to increase
Friction between gas and contact surface, and this process can consume gas flow energy.
Sealing tooth 1 is arranged between 6-12 teeth, although seal clearance is smaller, sealing tooth 1 counts more, and its sealing effectiveness will
Better, however, after the sealing number of tooth 1 increases to certain amount, effect improves and unobvious, and therefore, it is unsuitable excessive that sealing tooth 1 counts,
The technical program preferably 6 teeth.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of sealing structure of air blower, including sealing tooth（1）, it is characterised in that：The sealing tooth（1）It is inclined to set,
Inwards tilted by the outside of fan shaft, and in the sealing tooth（1）Termination be connected with baffler（2）.
A kind of 2. sealing structure of air blower according to claim 1, it is characterised in that：The baffler（3）Middle part
It is connected to sealing tooth（1）Termination.
A kind of 3. sealing structure of air blower according to claim 1, it is characterised in that：The sealing tooth（1）Upper setting
There are some dividing plates（3）.
A kind of 4. sealing structure of air blower according to claim 1, it is characterised in that：The sealing tooth（1）Inclination
Angle is between 45 ° to 60 °.
A kind of 5. sealing structure of air blower according to claim 1, it is characterised in that：The sealing tooth（1）In ladder
Type is distributed, and by the continuous lifting in inside facing outward side of fan shaft.
A kind of 6. sealing structure of air blower according to claim 1, it is characterised in that：The sealing tooth（1）And resistance
Dividing plate（2）Outer surface be all in frosted structure setting.
A kind of 7. sealing structure of air blower according to claim 1, it is characterised in that：Seal tooth（1）It is arranged on 6-12
Between tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507061.6U CN206738224U (en) | 2017-05-09 | 2017-05-09 | A kind of sealing structure of air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507061.6U CN206738224U (en) | 2017-05-09 | 2017-05-09 | A kind of sealing structure of air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738224U true CN206738224U (en) | 2017-12-12 |
Family
ID=60564879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720507061.6U Expired - Fee Related CN206738224U (en) | 2017-05-09 | 2017-05-09 | A kind of sealing structure of air blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738224U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007685A (en) * | 2017-12-29 | 2018-05-08 | 国网河北省电力有限公司衡水供电分公司 | Breaker mechanic property examination Special wiring bar |
| CN109026819A (en) * | 2018-06-22 | 2018-12-18 | 浙江大学 | The heterodont mouth ring sealing structure that a kind of double labyrinth seal structures of heterodont and a seed nucleus main pump use band to position |
| CN109737262A (en) * | 2019-01-18 | 2019-05-10 | 华北电力大学 | Ladder labyrinth type throttling element |
| CN113154047A (en) * | 2021-04-30 | 2021-07-23 | 西安交通大学 | Self-rotation-stopping labyrinth seal based on addendum winglet structure and processing method thereof |
-
2017
- 2017-05-09 CN CN201720507061.6U patent/CN206738224U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007685A (en) * | 2017-12-29 | 2018-05-08 | 国网河北省电力有限公司衡水供电分公司 | Breaker mechanic property examination Special wiring bar |
| CN109026819A (en) * | 2018-06-22 | 2018-12-18 | 浙江大学 | The heterodont mouth ring sealing structure that a kind of double labyrinth seal structures of heterodont and a seed nucleus main pump use band to position |
| CN109737262A (en) * | 2019-01-18 | 2019-05-10 | 华北电力大学 | Ladder labyrinth type throttling element |
| CN113154047A (en) * | 2021-04-30 | 2021-07-23 | 西安交通大学 | Self-rotation-stopping labyrinth seal based on addendum winglet structure and processing method thereof |
| CN113154047B (en) * | 2021-04-30 | 2023-04-11 | 西安交通大学 | Self-rotation-stopping labyrinth seal based on addendum winglet structure and processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206738224U (en) | A kind of sealing structure of air blower | |
| CN102128174A (en) | Spiral-flow type blockage-free energy-efficient centrifugal fan | |
| CN108457908A (en) | A kind of sucking air deflector of centrifugal pump | |
| CN109026819B (en) | Special-shaped tooth double-labyrinth sealing structure and special-shaped tooth mouth ring sealing structure with positioning function for nuclear main pump | |
| CN206495822U (en) | A kind of new and effective welding centrifugal blower | |
| CN201982336U (en) | Swirl-type non-clogging energy-saving centrifugal fan | |
| CN206093073U (en) | Fire prevention non return exhaust airway | |
| CN107228071A (en) | A kind of chemical flow-process pump of high-cavitation-resistance energy | |
| CN207960999U (en) | A kind of ducting system and wind turbine | |
| CN108533757A (en) | A kind of labyrinth seal structure that can increase chamber dissipation | |
| CN206257080U (en) | Centrifugal fan | |
| CN208719348U (en) | A kind of anti-beat static seal device of row's epoxy-type | |
| CN207131864U (en) | A kind of non-contact rotary sealing structure | |
| CN206957975U (en) | A kind of sealing structure applied to water pump | |
| CN207080368U (en) | The chemical flow-process pump of high-cavitation-resistance energy | |
| CN204906838U (en) | Inside cooling device of electron accelerator | |
| CN206054313U (en) | Double volute flow guiding machine configuration centrifugal multistage pump multiple centrifugal pumps | |
| CN207093793U (en) | A kind of high temperature and high pressure steam sweeping type butterfly valve structure | |
| CN206449014U (en) | Axial flow fan blade and fan and air conditioner outdoor unit with same | |
| CN107299917B (en) | A kind of environment-friendly highly efficient noise reduction cooling air blower | |
| CN205423237U (en) | High voltage ring fan that appears | |
| CN205908813U (en) | Wind channel check valve | |
| CN213578687U (en) | Rotary kiln sealing device | |
| CN103939936A (en) | Multistage-pair air-sealing-type sealing system set of rotary air pre-heaters | |
| CN208089912U (en) | A kind of reduction box heat sink |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |