CN204986127U - Dismantle formula low temperature rotary joint fast - Google Patents
Dismantle formula low temperature rotary joint fast Download PDFInfo
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- CN204986127U CN204986127U CN201520783762.3U CN201520783762U CN204986127U CN 204986127 U CN204986127 U CN 204986127U CN 201520783762 U CN201520783762 U CN 201520783762U CN 204986127 U CN204986127 U CN 204986127U
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- nitrogen
- end flange
- steel ball
- sealing washer
- seal
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Abstract
Dismantle formula low temperature rotary joint fast, it relates to mechanical equipment field, concretely relates to dismantle formula low temperature rotary joint fast. It comprises rotation axis (1), rotatory shell (2), stiff end flange (3), rotatory hold -carrying blue (4), steel ball (5), primary seal circle (6), inferior sealing washer (7), nitrogen gas sealing washer (8), steel ball linking piece (9), a nitrogen gas sealing washer baffle (10), metal soft seal (11), nitrogen gas entry skirt (12). The utility model discloses have the degree of difficulty that reduces the sealing washer and change, realized that the sealing washer scene is faster fast to reduce the sealing washer and used quantity, reduced the leakage point, reduce cost, the laborsaving beneficial effect of saving trouble.
Description
technical field:
The utility model relates to technical field of mechanical equipment, particularly a kind of fast detachable cryogenic swivel.
background technique:
Cryogenic swivel is the critical component on LNG entrucking sledge, is also the place very easily occurring in LNG pipe-line system to leak.At present, the design temperature-196 DEG C ~+65 DEG C of cryogenic swivel, design pressure 1.6MPa, the metallic member such as shell and running shaft adopts 316L, seal ring adopts the general plug be made up of teflon or the in-built special spring of other high performance materials to seal, swivel joint rotating part adopts the structural type of roll ways and roll balls, and swivel joint inside is provided with nitrogen circulation chamber.
Traditional cryogenic swivel due to two side flanges and rotary component be one, when changing seal ring, need first all steel balls to be taken out from raceway, then just rotational shell can be separated with running shaft, seal ring takes out the most at last, but there is tension force because general plug seals inner spring, makes to there is larger active force and reaction force between steel ball and raceway, the process of getting steel ball is very difficult, and causing seal ring to be changed wastes time and energy.
model utility content:
The purpose of this utility model changes the problem of difficulty, propose a kind of fast detachable cryogenic swivel structure, by the improvement to structure, reduce the difficulty that seal ring is changed, achieve the on-the-spot quick-replaceable of seal ring, and decrease seal ring usage quantity, reduce leakage point, reduce costs.
To achieve these goals, the technical solution adopted in the utility model is: it is made up of running shaft 1, rotational shell 2, fixed end flange 3, round end flange 4, steel ball 5, primary seal circle 6, secondary seal ring 7, nitrogen-sealed circle 8, steel ball linking block 9, nitrogen-sealed circle baffle plate 10, metal soft seal 11, nitrogen inlet skirt 12; Running shaft 1, rotational shell 2 and steel ball 5 three form a solid of rotation A, and solid of rotation A nitrogen-sealed place adopts axle to rotate general plug envelope and seals, and rotational shell 2 is provided with nitrogen-sealed circle 8; Adopt between fixed end flange 3 and solid of rotation A be screwed, the form of end face static seal; Round end flange 4 and solid of rotation A are adopted by metal soft seal 11 and are screwed; Round end flange 4 and solid of rotation A rotate docking part by primary seal circle 6, the motive sealing of secondary seal ring 7 two-stage end face; Steel ball 5 ingress is provided with steel ball and is connected block 9, and nitrogen inlet skirt 12 is arranged at top through fixed end flange 3.
Described nitrogen-sealed circle 8 is arranged on rotational shell 2.
The position of described rotational shell 2 being installed nitrogen-sealed circle 8 is provided with removal hole.
Described rotational shell 2 adopts metallic copper firmly to seal with fixed end flange 3.
Principle of the present utility model is: steel ball 5 ingress is provided with steel ball and is connected block 9, makes steel ball 5 movement locus form entirety, reduces steel ball 5 and beats, make rotation more smooth-going.Rotational shell 2 is provided with nitrogen-sealed circle 8, and the position of rotational shell being installed nitrogen-sealed circle is provided with removal hole; Nitrogen inlet skirt 12 is directly connected in the inner nitrogen circulation chamber of swivel joint through fixed end flange 3, decreases leakage point and seal ring usage quantity; Rotational shell 2 and fixed end flange 3 adopt metallic copper firmly to seal.When changing nitrogen-sealed circle 8, nitrogen-sealed circle baffle plate 10 is pulled down replaceable.When changing LNG seal ring, the fixed end flange 3 of both sides and round end flange 4 are taken apart namely replaceable.
The utility model beneficial effect is: reduce the difficulty that seal ring is changed, and achieves the on-the-spot quick-replaceable of seal ring, and decreases seal ring usage quantity, reduce leakage point, reduce costs, save trouble and labor.
accompanying drawing illustrates:
Fig. 1 is structural profile schematic diagram of the present utility model;
Fig. 2 is steel ball entrance schematic diagram of the present utility model.
Description of reference numerals:
1 running shaft, 2 rotational shells, 3 fixed end flanges, 4 round end flanges, 5 steel balls, 6 primary seal circles, 7 seal rings, 8 nitrogen-sealed circles, 9 steel balls are connected block, 10 nitrogen-sealed circle baffle plates, 11 metal soft seals, 12 nitrogen inlet skirts.
embodiment:
Below in conjunction with accompanying drawing, the utility model is further described.
Referring to such as Fig. 1-2, this embodiment by the following technical solutions: it is connected block 9 by running shaft 1, rotational shell 2, fixed end flange 3, round end flange 4, steel ball 5, primary seal circle 6, secondary seal ring 7, nitrogen-sealed circle 8, steel ball, nitrogen-sealed circle baffle plate 10, metal soft seal 11, nitrogen inlet skirt 12 form; Running shaft 1, rotational shell 2 and steel ball 5 three form a solid of rotation A, and solid of rotation A nitrogen-sealed place adopts axle to rotate general plug envelope and seals, and rotational shell 2 is provided with nitrogen-sealed circle 8; Adopt between fixed end flange 3 and solid of rotation A be screwed, the form of end face static seal; Round end flange 4 and solid of rotation A are adopted by metal soft seal 11 and are screwed; Round end flange 4 and solid of rotation A rotate docking part by primary seal circle 6, the motive sealing of secondary seal ring 7 two-stage end face; Steel ball 5 ingress is provided with steel ball and is connected block 9, makes steel ball 5 movement locus form entirety, reduces steel ball 5 and beats, make rotation more smooth-going.Rotational shell 2 is provided with nitrogen-sealed circle 8, and the position of rotational shell being installed nitrogen-sealed circle is provided with removal hole; Nitrogen inlet skirt 12 is directly connected in the inner nitrogen circulation chamber of swivel joint through fixed end flange 3, decreases leakage point and seal ring usage quantity; Rotational shell 2 and fixed end flange 3 adopt metallic copper firmly to seal.When changing nitrogen-sealed circle 8, nitrogen-sealed circle baffle plate 10 is pulled down replaceable.When changing LNG seal ring, the fixed end flange 3 of both sides and round end flange 4 are taken apart namely replaceable.
This embodiment has following beneficial effect: reduce the difficulty that seal ring is changed, and achieves the on-the-spot quick-replaceable of seal ring, and decreases seal ring usage quantity, reduce leakage point, reduce costs, save trouble and labor.
The above, only in order to the technical solution of the utility model to be described and unrestricted, other amendment that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in right of the present utility model.
Claims (4)
1. fast detachable cryogenic swivel, is characterized in that it is made up of running shaft (1), rotational shell (2), fixed end flange (3), round end flange (4), steel ball (5), primary seal circle (6), secondary seal ring (7), nitrogen-sealed circle (8), steel ball linking block (9), nitrogen-sealed circle baffle plate (10), metal soft seal (11), nitrogen inlet skirt (12); Running shaft (1), rotational shell (2) and steel ball (5) three form a solid of rotation (A), and solid of rotation (A) nitrogen-sealed place adopts axle to rotate general plug envelope and seals; Adopt between fixed end flange (3) and solid of rotation (A) be screwed, the form of end face static seal; Round end flange (4) and solid of rotation (A) are adopted by metal soft seal (11) and are screwed; Round end flange (4) and solid of rotation (A) rotate docking part by primary seal circle (6), the motive sealing of secondary seal ring (7) two-stage end face; Steel ball (5) ingress is provided with steel ball and is connected block (9), and nitrogen inlet skirt (12) is arranged at top through fixed end flange (3).
2. fast detachable cryogenic swivel according to claim 1, is characterized in that described nitrogen-sealed circle (8) is arranged on rotational shell (2).
3. fast detachable cryogenic swivel according to claim 1, is characterized in that the upper position of installing nitrogen-sealed circle (8) of described rotational shell (2) is provided with removal hole.
4. fast detachable cryogenic swivel according to claim 1, is characterized in that described rotational shell (2) and fixed end flange (3) adopt metallic copper firmly to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520783762.3U CN204986127U (en) | 2015-10-12 | 2015-10-12 | Dismantle formula low temperature rotary joint fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520783762.3U CN204986127U (en) | 2015-10-12 | 2015-10-12 | Dismantle formula low temperature rotary joint fast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986127U true CN204986127U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520783762.3U Active CN204986127U (en) | 2015-10-12 | 2015-10-12 | Dismantle formula low temperature rotary joint fast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204986127U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701554A (en) * | 2017-11-15 | 2018-02-16 | 马香侬 | It is a kind of can quick-detach soon adapter piece |
| CN109973815A (en) * | 2019-04-30 | 2019-07-05 | 鞍山市昱虎流体设备有限公司 | Three branch arm pipes purging Anti-freezing cryogen is unloaded arm |
| CN110985787A (en) * | 2019-12-30 | 2020-04-10 | 上海齐耀动力技术有限公司 | Low-temperature rotary joint structure |
-
2015
- 2015-10-12 CN CN201520783762.3U patent/CN204986127U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701554A (en) * | 2017-11-15 | 2018-02-16 | 马香侬 | It is a kind of can quick-detach soon adapter piece |
| CN109973815A (en) * | 2019-04-30 | 2019-07-05 | 鞍山市昱虎流体设备有限公司 | Three branch arm pipes purging Anti-freezing cryogen is unloaded arm |
| CN109973815B (en) * | 2019-04-30 | 2023-12-22 | 鞍山市昱虎流体设备有限公司 | Anti-freezing cryogenic fluid unloading arm with three-branch support arm pipe sweeping function |
| CN110985787A (en) * | 2019-12-30 | 2020-04-10 | 上海齐耀动力技术有限公司 | Low-temperature rotary joint structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |