CN202790535U - Seal box for stirring shaft of 1, 3-propanediol fermentation tank - Google Patents
Seal box for stirring shaft of 1, 3-propanediol fermentation tank Download PDFInfo
- Publication number
- CN202790535U CN202790535U CN 201220346965 CN201220346965U CN202790535U CN 202790535 U CN202790535 U CN 202790535U CN 201220346965 CN201220346965 CN 201220346965 CN 201220346965 U CN201220346965 U CN 201220346965U CN 202790535 U CN202790535 U CN 202790535U
- Authority
- CN
- China
- Prior art keywords
- ring
- stirring shaft
- seal box
- flange
- sealed letter
- 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
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Abstract
The utility model discloses a seal box for a stirring shaft of a 1, 3-propanediol fermentation tank. The seal box comprises a seal box body, a flange, a pressing cover, a pressing ring, an expansion ring, a fixing ring and bolts and nuts. The bolts and nuts connected with the pressing cover and the flange are screwed to push down a boss of the pressing cover into the pressing ring, a convex corner of the convex ring stretches a concave corner of the expansion wring, an outer corner is closely attached to the seal inner wall, an inner corner is closely attached to the stirring shaft to tightly prevent gas from leaking, the fixing ring prevents the stirring shaft from swinging to protect a seal part, and the seal part and the fixing ring are both made of polytetrafluoroethylene for filling graphite and metal powder so that the seal box is high in toughness, elasticity, self-lubricating performance and abrasion resistance. Therefore, the seal box is high in hermeticity and durable.
Description
Technical field
The utility model relates to a tripropylene glycol installation for fermenting, is directly involved in a tripropylene glycol fermenting tub stirring shaft sealed letter.
Background technique
China is from last century end microorganism aerobic fermenting and producing one tripropylene glycol that begins one's study, and Shandong auspicious sign pharmaceutcal corporation, Ltd has completed the 2000t/a pilot scale in 2010.Fermenting tub adopts the mechanical agitation form, and stirring shaft adopts the sealing of oil immersion asbestos rope, because oil immersion asbestos rope matter is crisp nonelastic, vibration compressing asbestos rope in the stirring shaft operation process shrinks, and after several hours, gas leaks in a large number, pressure drop, affect fermentation process and quality of product.
Summary of the invention
The purpose of this utility model just is to provide a kind of new seal arrangement, effectively solves the peripheral problem of revealing the gases affect fermentation of stirring shaft.
The purpose of this utility model is achieved in that a tripropylene glycol fermenting tub stirring shaft sealed letter, there is sealed letter body, flange, gland, pressure ring, tensioner ring, retaining ring, bolt and nut, the sealed letter body is the cylindrical body on steel band chassis, upper end periphery welded flange, at the inner lower floor of sealed letter body dress retaining ring, middle dress tensioner ring, upper strata dress pressure ring, top dress gland, fastening with bolt and nut and flange.
[0008]the utility model is owing to having adopted the dress retaining ring in the inner lower floor of sealed letter body, and middle dress tensioner ring, upper strata fill pressure ring, and the structure of top dress gland, prevented that stirring shaft from waving, and improved sealing effect.
In the utility model, because pressure ring, tensioner ring and retaining ring have all adopted the polytetrafluoroethylmaterial material of filling graphite, metallic dust, there is good toughness, elasticity, self lubricity and wear resistance, so good sealing effect, durable in use.
The accompanying drawing explanation
The structural representation that accompanying drawing 1 is the utility model one tripropylene glycol fermenting tub stirring shaft sealed letter, below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment
Accompanying drawing shows the structure of the utility model one tripropylene glycol fermenting tub stirring shaft sealed letter.There is sealed letter body 1, flange 2, gland 3, pressure ring 4, tensioner ring 5, retaining ring 6, bolt and nut 7.
Described sealed letter body 1 is to stay the cylindrical body of axis hole with the pallet center with the bottom of carbon steel turning, chassis outer diameter 160mm, axis hole 60mm, top cylinder body diameter 110 mm, internal diameter 90mm.At sealed letter body upper end periphery welded flange 2, the four hole flanges with carbon steel turning, hole centre distance 130mm, aperture 8mm, bottom dress retaining ring 6 in the sealed letter body, it is the annulus that the transverse section with the polytetrafluoroethylmaterial material turning of filling graphite, metallic dust is rectangle, internal diameter φ 60mm, external diameter φ 90mm, thick 20mm, middle level dress tensioner ring 5, the annulus that the upper end with the polytetrafluoroethylmaterial material turning of filling graphite, metallic dust is re-entrant angle, internal diameter φ 60mm, external diameter φ 90mm, high 20mm, re-entrant angle angle 60
., upper strata dress pressure ring 4, be the annulus that the lower end surface with the polytetrafluoroethylmaterial material turning of filling graphite, metallic dust is salient angle, external diameter 90mm, internal diameter 60mm, thickness 20mm, salient angle angle 60
., pressure ring 4 upper cover metal backup shoes 3, be the four hole blind flanges with carbon steel turning, bottom surface is with boss, boss external diameter 80mm, internal diameter 70mm, high 5mm.Pressure ring 4 is fastening with flange 2 use bolt and nuts, and the chassis of sealed letter body 1 is welded on above the cylindrical shell end socket of fermenting tub, and stirring shaft penetrates the Sealing center.
Working principle:
The bolt and nut that connects gland 3 and flange 2 is progressively tightened, made the boss depress entrance pressure ring 4 of gland 3, the salient angle of pressure ring 4 struts tensioner ring 5 re-entrant angles, and exterior angle is adjacent to the inwall of sealed letter body, and interior angle is held stirring shaft tightly, has tightly stoped the leakage of gas.Retaining ring 6 is that cylindrical and sealed letter body inwall are adjacent to equally, and inner circle and stirring shaft are adjacent to, and play the prevention Leakage Gas, have limited the swing of stirring shaft simultaneously, plays again the effect of protection pressure ring 4 and tensioner ring 5.
Claims (1)
1. a tripropylene glycol fermenting tub stirring shaft sealed letter, it is characterized in that: there is sealed letter body (1), flange (2), gland (3), pressure ring (4), tensioner ring (5), retaining ring (6), bolt and nut (7), sealed letter body (1) is the cylindrical body on steel band chassis, upper end periphery welded flange (2), at the inner lower floor of sealed letter body (1) dress retaining ring (6), middle dress tensioner ring (5), upper strata dress pressure ring (4), top dress gland (3), fastening with bolt and nut (7) and flange (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346965 CN202790535U (en) | 2012-07-18 | 2012-07-18 | Seal box for stirring shaft of 1, 3-propanediol fermentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346965 CN202790535U (en) | 2012-07-18 | 2012-07-18 | Seal box for stirring shaft of 1, 3-propanediol fermentation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790535U true CN202790535U (en) | 2013-03-13 |
Family
ID=47817800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220346965 Expired - Fee Related CN202790535U (en) | 2012-07-18 | 2012-07-18 | Seal box for stirring shaft of 1, 3-propanediol fermentation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470763A (en) * | 2013-09-03 | 2013-12-25 | 南宁广发重工集团有限公司 | Rotary body combined seal device |
| CN112303231A (en) * | 2019-07-29 | 2021-02-02 | 矢崎总业株式会社 | Sealing member and waterproof structure |
-
2012
- 2012-07-18 CN CN 201220346965 patent/CN202790535U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470763A (en) * | 2013-09-03 | 2013-12-25 | 南宁广发重工集团有限公司 | Rotary body combined seal device |
| CN103470763B (en) * | 2013-09-03 | 2016-01-27 | 南宁广发重工集团有限公司 | A kind of solid of rotation combination sealing arrangement |
| CN112303231A (en) * | 2019-07-29 | 2021-02-02 | 矢崎总业株式会社 | Sealing member and waterproof structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20180718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |