CN103939608B - The running roller air seal set that a kind of carbon fibre precursor and carbon filament are used - Google Patents
The running roller air seal set that a kind of carbon fibre precursor and carbon filament are used Download PDFInfo
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- CN103939608B CN103939608B CN201410072081.6A CN201410072081A CN103939608B CN 103939608 B CN103939608 B CN 103939608B CN 201410072081 A CN201410072081 A CN 201410072081A CN 103939608 B CN103939608 B CN 103939608B
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- running roller
- extending chamber
- sealing gland
- steam
- air seal
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Abstract
The present invention relates to the running roller air seal set that a kind of carbon fibre precursor and carbon filament are used, comprise the steam extending chamber two ends section at steam extending chamber interlude and steam extending chamber interlude two ends, steam extending chamber interlude and steam extending chamber two ends section all adopt two exhaust envelope cavity sealings, a plural number steam suppling tube is installed in steam extending chamber interlude, sealing gland running roller for sealing gland is all installed in steam extending chamber two ends section, and described sealing gland running roller and steam extending chamber two ends section are sealed connected together. Compare with current conventional air seal set, sealing gland of the present invention is effective, and occupied ground area is little, and cost is low.
Description
Technical field
The present invention relates to a kind of air seal set, particularly relate to one can promote quality and save steam consumption,Reduce the carbon fibre precursor of occupied ground length and the running roller air seal set that carbon filament is used.
Background technology
As shown in Figure 1, labyrinth seal (LabyrinthSeal, i.e. ring packing) is macrophyll wheel mechanical, asThe equipment of common minimizing leakage rate in steam turbine and high-pressure compressor. But, for the turbine of high parameterTool, sealing gland leakage flow is easily brought out flow-induced vibration, and oneself becomes one of key factor affecting shafting stability,Sealing gland tooth 2 is installed in labyrinth seal 1 in Fig. 1, and this is current modal labyrinth seal.
In addition, when labyrinth seal is arranged on the both sides of steam extending chamber, because labyrinth seal is good at needsWhen sealing gland effect, the length that labyrinth seal need to be installed is long, and the place taking is larger.
In order to solve above these problems, honeycomb sealing gland (HoneycombGasSeal) has abroad been proposed, asShown in Fig. 2, transform annular chamber 3 as honeycomb shape, strengthen leakage flow energy by increase rubbing surface and disappearConsumption, thus leakage rate reduced, also strengthen stability. But honeycomb sealing gland processing difficulties, involves great expense,So far do not obtain extensively should in industrial quarters.
Therefore, in the time that large-scale steam suppling tube needs sealing gland, the above-mentioned labyrinth seal of mentioning and honeycomb sealing glandBe not optimal selection, need a kind of new air seal method to solve sealing gland weak effect, cost is high, accounts forWith the large air seal set of site area.
Summary of the invention
For the problems referred to above, main purpose of the present invention is to provide one can promote quality and save steam to disappearConsume, reduce the carbon fibre precursor of occupied ground length and the running roller air seal set that carbon filament is used.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of carbon fibre precursor and carbonThe running roller air seal set of silk use, comprises the steam at steam extending chamber interlude and steam extending chamber interlude two endsExtending chamber's two ends section, steam extending chamber interlude and steam extending chamber two ends section all adopt two exhaust envelope cavitys closeEnvelope, is provided with a plural number steam suppling tube in steam extending chamber interlude, in steam extending chamber two ends section, all pacifySealing gland running roller for sealing gland is housed, and described sealing gland running roller and steam extending chamber two ends section are sealed connected together.
In specific embodiments of the invention: described sealing gland cavity is vertical with steam suppling tube.
In specific embodiments of the invention: described sealing gland cavity near the part of sealing gland running roller by sealing glandRunning roller surrounds.
In specific embodiments of the invention: described sealing gland cavity is gentle in the part near sealing gland running rollerEnvelope running roller adopts and is flexibly connected.
In specific embodiments of the invention: be provided with close between described sealing gland running roller and steam extending chamberBlock plate.
In specific embodiments of the invention: described steam extending chamber two ends section is " L " type.
Positive progressive effect of the present invention is: the running roller gas that carbon fibre precursor provided by the invention and carbon filament are usedSeal apparatus has the following advantages: compare with current conventional air seal set, sealing gland of the present invention is effective, takiesSite area is little, and cost is low.
Brief description of the drawings
Fig. 1 is the structural representation of current conventional labyrinth seal.
Fig. 2 is the structural representation of current conventional honeycomb sealing gland.
Fig. 3 is the structural representation of the form sealing gland steam extending chamber of current conventional employing labyrinth seal.
Fig. 4 is the structural representation of the form sealing gland steam extending chamber of the running roller sealing gland that adopts of the present invention.
Detailed description of the invention
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
Fig. 3 is the structural representation of the form sealing gland steam extending chamber of current conventional employing labyrinth seal, Fig. 4The structural representation of form sealing gland steam extending chamber of the running roller sealing gland adopting for the present invention, in Fig. 3 and Fig. 4The direction of arrow all represents the traffic direction of carbon fiber. As shown in Figure 3-4: the present invention includes steam extending chamberThe steam extending chamber two ends section 6 at interlude 4 and steam extending chamber interlude 4 two ends, steam extending chamber interlude4 and steam extending chamber two ends section 6 all adopt two exhausts envelopes cavitys 9 to seal, steam extending chamber interlude 4 interior peacesA plural number steam suppling tube 5 is housed, the interior sealing gland running roller being all provided with for sealing gland of steam extending chamber two ends section 67, described sealing gland running roller 7 and steam extending chamber two ends section 6 are sealed connected together.
Sealing gland cavity 9 is vertical with steam suppling tube 5, sealing gland cavity 6 near the part of sealing gland running roller 7 by gasEnvelope running roller 7 surrounds, and sealing gland cavity 9 connects in the part near sealing gland running roller 7 and the 9 employing activities of sealing gland running rollerConnect. Between sealing gland running roller 7 and steam extending chamber 6, be provided with sealing baffle 8, play inside cavity with outside largeAir bound from effect. In Fig. 4, between sealing gland running roller 7 and steam extending chamber 6, be provided with sealing baffle 8
Steam extending chamber two ends section 6 is " L " type, the direction of the expression carbon fiber of arrow operation in Fig. 4, because ofSteam extending chamber open to atmosphere basal area difference great disparity, is supplying with under the condition that the pressure of steam and flow are identical,P2 is significantly greater than P1, T2 is greater than T1, therefore can promote quality and save steam consumption.
Because running roller sealing gland length relative extent shortens, therefore can reduce occupied ground length.
More than show and described general principle of the present invention and principal character and advantage of the present invention. The industryTechnical staff should understand, the present invention is not restricted to the described embodiments, in above-described embodiment and descriptionThat describes just illustrates principle of the present invention, without departing from the spirit and scope of the present invention, and the present inventionAlso have various changes and modifications, these changes and improvements all fall in the claimed scope of the invention, thisInventing claimed scope is defined by appending claims and equivalent thereof.
Claims (6)
1. the running roller air seal set that carbon fibre precursor and carbon filament are used, described carbon fibre precursor and carbon filament are usedRunning roller air seal set comprises the steam extending chamber two at steam extending chamber interlude and steam extending chamber interlude two endsEnd section, steam extending chamber interlude and steam extending chamber two ends section all adopt two exhaust envelope cavity sealings, steamA plural number steam suppling tube is installed in extending chamber's interlude, it is characterized in that: in steam extending chamber two ends sectionSealing gland running roller for sealing gland is all installed, and described sealing gland running roller and steam extending chamber two ends section are sealedly connected onTogether, make inside cavity and outside atmosphere isolation.
2. the running roller air seal set that carbon fibre precursor according to claim 1 and carbon filament are used, its feature existsIn: described sealing gland cavity is vertical with steam suppling tube.
3. the running roller air seal set that carbon fibre precursor according to claim 1 and carbon filament are used, its feature existsIn: described sealing gland cavity surrounds sealing gland running roller near the part of sealing gland running roller.
4. the running roller air seal set that carbon fibre precursor according to claim 1 and carbon filament are used, its feature existsIn: described sealing gland cavity adopts flexible connection in the part near sealing gland running roller and sealing gland running roller.
5. the running roller air seal set that carbon fibre precursor according to claim 1 and carbon filament are used, its feature existsIn: between described sealing gland running roller and steam extending chamber, be provided with sealing baffle.
6. the running roller air seal set that carbon fibre precursor according to claim 1 and carbon filament are used, its feature existsIn: described steam extending chamber two ends section is " L " type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072081.6A CN103939608B (en) | 2014-02-28 | 2014-02-28 | The running roller air seal set that a kind of carbon fibre precursor and carbon filament are used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072081.6A CN103939608B (en) | 2014-02-28 | 2014-02-28 | The running roller air seal set that a kind of carbon fibre precursor and carbon filament are used |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939608A CN103939608A (en) | 2014-07-23 |
| CN103939608B true CN103939608B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410072081.6A Active CN103939608B (en) | 2014-02-28 | 2014-02-28 | The running roller air seal set that a kind of carbon fibre precursor and carbon filament are used |
Country Status (1)
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| CN (1) | CN103939608B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1112874A (en) * | 1997-06-19 | 1999-01-19 | Toray Ind Inc | Acrylic fiber yarn, and method and apparatus for steam-drawing of the same, and carbon fiber |
| JP2008240203A (en) * | 2007-03-28 | 2008-10-09 | Toray Ind Inc | Steam drawing apparatus and method for producing precursor yarn for carbon fiber |
| JP2010222753A (en) * | 2009-03-25 | 2010-10-07 | Toray Ind Inc | Steam drawing unit |
| CN203411791U (en) * | 2013-07-18 | 2014-01-29 | 中简科技发展有限公司 | Steam drawing device for carbon fiber precursor |
-
2014
- 2014-02-28 CN CN201410072081.6A patent/CN103939608B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1112874A (en) * | 1997-06-19 | 1999-01-19 | Toray Ind Inc | Acrylic fiber yarn, and method and apparatus for steam-drawing of the same, and carbon fiber |
| JP2008240203A (en) * | 2007-03-28 | 2008-10-09 | Toray Ind Inc | Steam drawing apparatus and method for producing precursor yarn for carbon fiber |
| JP2010222753A (en) * | 2009-03-25 | 2010-10-07 | Toray Ind Inc | Steam drawing unit |
| CN203411791U (en) * | 2013-07-18 | 2014-01-29 | 中简科技发展有限公司 | Steam drawing device for carbon fiber precursor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939608A (en) | 2014-07-23 |
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