CN205298541U - Air film seal structure for cryogenic pump - Google Patents
Air film seal structure for cryogenic pump Download PDFInfo
- Publication number
- CN205298541U CN205298541U CN201520351316.5U CN201520351316U CN205298541U CN 205298541 U CN205298541 U CN 205298541U CN 201520351316 U CN201520351316 U CN 201520351316U CN 205298541 U CN205298541 U CN 205298541U
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- ring
- rotating ring
- axle sleeve
- gland
- head screw
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Abstract
The utility model discloses an air film seal structure for cryogenic pump, mainly by rotating ring gasket (1), rotating ring (2), the rotating ring compresses tightly set (3), quiet ring (4), stop pin (5), axle sleeve (6), bellows subassembly (7), gland (8), hex head screw (9), restrictor ring (10), collection mounting (11), hexagon nut (12), stud (13), inner hexagonal cylinder head screw (14), wear -resisting cover (15), (16) are filled up in the adjustment of quiet ring, spring energy storage sealing washer (17), bellows subassembly department's O shape circle (18), axle sleeve department's O shape circle (19) constitutes. The utility model discloses the reasonable practicality of air film design of a seal structure, the installation of being convenient for is dismantled, labour saving and time saving, energy -concerving and environment -protective, safe and reliable has improved enterprise economy efficiency and economic benefits, is fit for generally using widely.
Description
Technical field
The utility model relates to cryogenic pump technical field, especially a kind of cryogenic pump gas film sealing structure.
Background technology
Cryogenic pump is in oil, empty point and chemical plant installations, to be used for the specific pump of transporting low temperature liquid, and its purposes is that cryogenic liquid is transported to the place that pressure is high from the low place of pressure. Because medium temperature is lower, the variation of operating environment, often there is dielectric leakage in the conventional common contact-type mechanical seal adopting, and has not easy-maintaining, dismounting difficulty, the drawback wasting time and energy, also contaminated environment.
Summary of the invention
The purpose of this utility model is to provide packaging type design, be convenient to a kind of cryogenic pump gas film sealing structure of on-the-spot installation and removal, the technical scheme taked is for achieving the above object: a kind of cryogenic pump gas film sealing structure, mainly by rotating ring, rotating ring pad, axle sleeve, rotating ring clamping sleeve, the O of axle sleeve place shape circle, stationary ring, stop pin, bellows component, gland, hex head screw, restrictor ring, collection load, hex nut, studs, hexagon socket cap head screw, wear-resistant sleeve, stationary ring adjusting pad, spring energy-storage sealing ring, the O of bellows component place shape circle forms. rotating ring seal face is offered Hydrodynamic groove, rotating ring and rotating ring pad are fixed on axle sleeve by rotating ring clamping sleeve, stationary ring contacts with the rotating ring of offering meter fluid dynamic pressure groove, spring energy-storage sealing ring, stationary ring adjusting pad, wear-resistant sleeve and stationary ring successively order are arranged on bellows component, guarantee that the pressure arc on stationary ring is corresponding with stop pin, gland is connected by hexagon socket cap head screw with bellows component, restrictor ring is arranged in the groove of gland, collection load is fixed on gland by hex head screw, be stuck in the annular groove in axle sleeve simultaneously, a whole set of gas film sealing is fixed on body by hex nut and studs.
The practicality of the utility model gas film sealing reasonable in design, has solved the problem that former common contact-type sealing exists, and is convenient to installing/dismounting, time saving and energy saving, and energy-conserving and environment-protective are safe and reliable, improved economic efficiency of enterprise and economic benefit, are applicable to generally promoting the use of.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Detailed description of the invention
As shown in Figure 1, a kind of cryogenic pump gas film sealing structure, is mainly made up of rotating ring pad 1, rotating ring 2, rotating ring clamping sleeve 3, stationary ring 4, stop pin 5, axle sleeve 6, bellows component 7, gland 8, hex head screw 9, restrictor ring 10, collection load 11, hex nut 12, studs 13, hexagon socket cap head screw 14, wear-resistant sleeve 15, stationary ring adjusting pad 16, spring energy-storage sealing ring 17, the O of bellows component place shape circle 18, the O of axle sleeve place shape circle 19. Rotating ring 2 seal faces are offered Hydrodynamic groove, and rotating ring 2 and rotating ring pad 1 are fixed on axle sleeve by rotating ring clamping sleeve 3, and this is rotary part. Stationary ring 4 contacts with the rotating ring 2 of offering meter fluid dynamic pressure groove, spring energy-storage sealing ring 17, stationary ring adjusting pad 16, wear-resistant sleeve 15 and stationary ring 4 successively order are arranged on bellows component 7, guarantee that the pressure arc on stationary ring 4 is corresponding with stop pin 5, gland 8 is connected by hexagon socket cap head screw 14 with bellows component 7, restrictor ring 10 is arranged in the groove of gland 8, and this is stationary parts. 4 of the stationary rings of stationary parts are fitted with rotating ring 2 faces, and collection load 11 is fixed on gland 8 by hex head screw 9, is stuck in the annular groove in axle sleeve 6 simultaneously, and a whole set of gas film sealing is fixed on body by hex nut 12 and studs 13.
The utility model gas film sealing adopts balanced type, the arrangement of bellows silent oscillation. Rotating ring 2 adopts and compresses transmission, the sealing function between rotating ring pad 1 starter ring 2 and the axle sleeve 6 at rotating ring 2 backs; Rotating ring 2 sealing surfaces are wider, and offer fluid dynamic pressure groove, are the bases that gas film sealing forms; Bellows in bellows component 7 is compensation original paper, can keep good compensatory in low temperature and ultralow temperature medium; The O of axle sleeve place shape circle 19 and the O of bellows component place shape circle 18 all adopt low temperature resistant material, and the O of axle sleeve place shape circle 19 is arranged between axle and axle sleeve 6 and seals; The O of bellows component place shape circle 18 is arranged between bellows component 7 and body and seals; The working depth that collection load 11 has been fixed bellows component 7, packaging type design, installation and removal are convenient at scene.
Claims (1)
1. a cryogenic pump gas film sealing structure, it is characterized in that: rotating ring (2) seal face is offered Hydrodynamic groove, rotating ring (2) and rotating ring pad (1) are fixed on axle sleeve by rotating ring clamping sleeve (3), stationary ring (4) contacts with the rotating ring (2) of offering meter fluid dynamic pressure groove, spring energy-storage sealing ring (17), stationary ring adjusting pad (16), wear-resistant sleeve (15) and stationary ring (4) successively order are arranged on bellows component (7), guarantee that the pressure arc on stationary ring (4) is corresponding with stop pin (5), gland (8) is connected by hexagon socket cap head screw (14) with bellows component (7), restrictor ring (10) is arranged in the groove of gland (8), stationary ring (4) face and rotating ring (2) face fit, collection load (11) is fixed on gland (8) by hex head screw (9), be stuck in the annular groove in axle sleeve (6) simultaneously, a whole set of gas film sealing is fixed on body by hex nut (12) and studs (13), the O of bellows component place shape circle (18) is arranged between bellows component (7) and body, the O of axle sleeve place shape circle (19) is arranged between axle and axle sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520351316.5U CN205298541U (en) | 2015-05-28 | 2015-05-28 | Air film seal structure for cryogenic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520351316.5U CN205298541U (en) | 2015-05-28 | 2015-05-28 | Air film seal structure for cryogenic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298541U true CN205298541U (en) | 2016-06-08 |
Family
ID=56438241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520351316.5U Active CN205298541U (en) | 2015-05-28 | 2015-05-28 | Air film seal structure for cryogenic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286833A (en) * | 2015-05-28 | 2017-01-04 | 东营海森密封技术有限责任公司 | A kind of cryopump gas film sealing structure |
-
2015
- 2015-05-28 CN CN201520351316.5U patent/CN205298541U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286833A (en) * | 2015-05-28 | 2017-01-04 | 东营海森密封技术有限责任公司 | A kind of cryopump gas film sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |