CN204254099U - A kind of inner cupola formula single point mooring liquid rotating joint - Google Patents
A kind of inner cupola formula single point mooring liquid rotating joint Download PDFInfo
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- CN204254099U CN204254099U CN201420647799.9U CN201420647799U CN204254099U CN 204254099 U CN204254099 U CN 204254099U CN 201420647799 U CN201420647799 U CN 201420647799U CN 204254099 U CN204254099 U CN 204254099U
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Abstract
The utility model relates to a kind of inner cupola formula single point mooring liquid rotating joint, and it belongs to field of ocean engineering.This liquid rotating joint top adopts highi degree of accuracy three row roller bearing that axial-radial bearing capacity is all stronger as main locating piece, ensures that inside and outside ring has higher rotating accuracy.Bottom adopts deep groove ball bearing again, reduces the skewness of gap value because skew that structure own wt or the effect that is subject to inertial force produce causes, and reduces seal ring extruding uneven or sting the situation of lip.This liquid rotating joint adopts realizing active sealing mode, and add by opposite side contact with crude oil at seal ring the hydraulic oil that pressure is greater than crude oil pressure, the No leakage of guarantee crude oil is carried.This liquid rotating joint not only has that structure is simple, bearing capacity is large, high, the easy installation and maintenance of seal ring, the feature such as safe and reliable, but also have and adapt to complicated natural climate and the ability of severe sea condition.
Description
Technical field
The utility model relates to a kind of inner cupola formula single point mooring liquid rotating joint, and it belongs to field of ocean engineering.
Background technique
Because China is in deep-sea oil exploitation field starting evening, little investment, talent shortage and backward in technique, cause liquid rotating joint still all monopolize by European and American developed countries.Current CNOOC is at the liquid rotating joint of China's four marine usage, from being designed into the whole dependence on import of manufacturing, not only expensive, and lead time is long, goes into operation smoothly and safeguard that replacement brings economic pressures and progress pressure to oil field.
Summary of the invention
In order to solve the critical equipment design problem used in China's South China Sea Deep Water oil and gas development, the utility model provides a kind of inner cupola formula single point mooring liquid rotating joint.
The technical solution adopted in the utility model is: a kind of inner cupola formula single point mooring liquid rotating joint, and it comprises base, inner ring and outer shroud, inserts the support ring fixed by base key in described base, inserts the inner ring of being fixed by key in support ring; Be equipped with three row roller bearings in described, the inner ring of three row roller bearings is bolted in inner ring by inner ring, and three row roller bearing outer rings are connected with upper sealing ring, outer shroud top by outer ring bolt; The bottom of described outer shroud is connected with lower sealing ring, baffle plate by outer collar bolt; Outer shroud is also provided with external flange and driving arm, and deep groove ball bearing is fixed on the bottom of inner ring by pressure ring; Be provided with an annular chamber between described inner ring and outer shroud, the bottom of annular chamber is provided with and intercepts circle; Described upper sealing ring and lower sealing ring are provided with lip-type packing.
Described inner ring is provided with the inlet opening by connecting tube, and outer shroud is provided with delivery outlet.
Described lip-type packing is provided with the inlet of hydraulic oil.
The invention has the beneficial effects as follows: this liquid rotating joint top adopts highi degree of accuracy three row roller bearing that axial-radial bearing capacity is all stronger as main locating piece, ensures that inside and outside ring has higher rotating accuracy.Bottom adopts deep groove ball bearing again, reduces the skewness of gap value because skew that structure own wt or the effect that is subject to inertial force produce causes, and reduces seal ring extruding uneven or sting the situation of lip.This liquid rotating joint adopts realizing active sealing mode, and add by opposite side contact with crude oil at seal ring the hydraulic oil that pressure is greater than crude oil pressure, the No leakage of guarantee crude oil is carried.This device by the oil-gas transportation from extraction in the sea in FPSO.FPSO, by single point mooring system, has certain heave and drift motion under the effect of wind, wave, stream, is in external forces all the time and makes a concerted effort minimum direction, to carry out 360 ° rotating freely around single point mooring system.The inner ring of liquid rotating joint is connected with piping under water, and outer shroud is connected with FPSO, and between inner and outer rings, relative movement face is undertaken sealing and being provided with leak detecting device by special seal ring.This swivel joint not only has that structure is simple, bearing capacity is large, high, the easy installation and maintenance of seal ring, the feature such as safe and reliable, but also have and adapt to complicated natural climate and the ability of severe sea condition.The modular design of this liquid rotating joint, can use according to the size stack combinations of oil transportation amount, be applicable to the exploitation of all kinds of oil gas field in coastal waters and deep-sea, for the exploitation of China coastal seas and deepwater field is laid a good foundation.
Accompanying drawing explanation
Fig. 1 is the structural drawing of a kind of inner cupola formula single point mooring liquid rotating joint.
In figure: 1, three row roller bearings, 1a, three row roller bearing outer rings, 1b, three row roller bearing inner rings, 2, lip-type packing, 3, inner ring, 4, driving arm, 5, deep groove ball bearing, 6, support ring, 7, base key, 7a, key, 8, upper sealing ring, 8a, outer ring bolt, 8b, inner ring bolt, 9, outer shroud, 9a, outer collar bolt, 10, external flange, 11, intercept circle, 12, lower sealing ring, 13, baffle plate, 14, pressure ring, 15, annular chamber, 16, base, A, hydraulic oil, B, crude oil, C, inlet opening, D, delivery outlet.
Embodiment
Fig. 1 shows a kind of inner cupola formula single point mooring liquid rotating joint, and it adopts in base 16 inserts by the fixing support ring 6 of base key 7, inserts the inner ring 3 of being fixed by key 7a in support ring 6; Inner ring 3 is provided with three row roller bearing 1, three row roller bearing inner ring 1b and is fixed in inner ring 3 by inner ring bolt 8b, and three row roller bearing outer ring 1a are connected with upper sealing ring 8, outer shroud 9 top by outer ring bolt 8a.The bottom of outer shroud 9 is connected with lower sealing ring 12, baffle plate 13 by outer collar bolt 9a; Outer shroud 9 is also provided with external flange 10 and driving arm 4.Deep groove ball bearing 5 is fixed on the bottom of inner ring 3 by pressure ring 14; Be provided with an annular chamber 15 between inner ring 3 and outer shroud 9, its bottom is provided with and intercepts circle 11; Upper sealing ring 8 and lower sealing ring 12 are provided with special lip-type packing 2.
When adopting technique scheme work, outer shroud 9 is provided with external flange 10, is connected with exterior tubing.Deep groove ball bearing 5 is fixed on the bottom of inner ring 3 by pressure ring 14.Pressure ring 14 is bolted in inner ring 3.Driving arm 4 is bolted on outer shroud 9, and is connected on external structure frame.Whole liquid rotating joint supports by fixing support ring 6, make when external structure frame rotates, drive driving arm 4 and the outer shroud 9 be connected with driving arm 4, upper sealing ring 8, external flange 10, lower sealing ring 12, baffle plate 13 to be rotated around inner ring 3 by three row roller bearings 1.
Inner ring 3 is provided with the inlet opening C by connecting tube, and outer shroud 9 is provided with delivery outlet D, has an annular chamber 15 between inner ring 3 and outer shroud 9, and the crude oil B with fixation pressure is transported in exterior tubing by this passage.Annular chamber 15 bottom is provided with and intercepts circle 11.Upper sealing ring 8 and lower sealing ring 12 are provided with lip-type packing 2, and this seal ring can bear the situation of both sides pressurized simultaneously.Lip-type packing 2 side contacts with crude oil B, and the high pressure liquid force feed A that opposite side injects with outside contacts.The pressure of hydraulic oil A is greater than the pressure of crude oil B, and so the crude oil B of low pressure can not by the hydraulic oil A of high pressure, enters the gap between inner ring 3 and upper sealing ring 8, lower sealing ring 12 and lets out.Containing a certain amount of silt in crude oil B, the density of silt is greater than the density of crude oil, and silt will deposit downwards.The silt that major part deposits blocks outside by the obstruct circle 11 that annular chamber 15 bottom is arranged, and prevents too much silt from contacting with the special lip-type packing 2 in lower sealing ring 12, for lip-type packing 2 provides better operating mode, improves its working life.The outer buttons rotation member diameter of liquid rotating joint is comparatively large and weight is larger, inner ring 3 bottom arranges deep groove ball bearing 5, reduce the gap between lower sealing ring 12 and inner ring 3, reduce the inequality distribution of the gap value that causes of skew that lower sealing ring 12 produces because of structure own wt or the effect that is subject to inertial force, ensure that special lip-type packing 2 is concentric with inner ring 3, each portion zero deflection extrudes.
Claims (3)
1. an inner cupola formula single point mooring liquid rotating joint, it comprises base (16), inner ring (3) and outer shroud (9), it is characterized in that: insert by the fixing support ring (6) of base key (7) in described base (16), insert by the fixing inner ring (3) of key (7a) in support ring (6); Described inner ring (3) is provided with three row roller bearings (1), the inner ring (1b) of three row roller bearings is fixed in inner ring (3) by inner ring bolt (8b), and three row roller bearing outer rings (1a) are connected with upper sealing ring (8), outer shroud (9) top by outer ring bolt (8a); The bottom of described outer shroud (9) is connected with lower sealing ring (12), baffle plate (13) by outer collar bolt (9a); Outer shroud (9) is also provided with external flange (10) and driving arm (4), deep groove ball bearing (5) is fixed on the bottom of inner ring (3) by pressure ring (14); Be provided with an annular chamber (15) between described inner ring (3) and outer shroud (9), the bottom of annular chamber (15) is provided with and intercepts circle (11); Described upper sealing ring (8) and lower sealing ring (12) are provided with lip-type packing (2).
2. a kind of inner cupola formula single point mooring according to claim 1 liquid rotating joint, is characterized in that: described inner ring (3) is provided with the inlet opening (C) by connecting tube, and outer shroud (9) is provided with delivery outlet (D).
3. a kind of inner cupola formula single point mooring according to claim 1 liquid rotating joint, is characterized in that: described lip-type packing (2) is provided with the inlet of hydraulic oil (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647799.9U CN204254099U (en) | 2014-11-03 | 2014-11-03 | A kind of inner cupola formula single point mooring liquid rotating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647799.9U CN204254099U (en) | 2014-11-03 | 2014-11-03 | A kind of inner cupola formula single point mooring liquid rotating joint |
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| CN204254099U true CN204254099U (en) | 2015-04-08 |
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| CN201420647799.9U Active CN204254099U (en) | 2014-11-03 | 2014-11-03 | A kind of inner cupola formula single point mooring liquid rotating joint |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358949A (en) * | 2014-11-03 | 2015-02-18 | 大连迪施船机有限公司 | Inner rotary tower type single-point mooring liquid rotary joint |
| CN110422294A (en) * | 2019-08-23 | 2019-11-08 | 山东鼎盛精工股份有限公司 | A kind of list column mooring formula well head production operation platform |
| CN111237567A (en) * | 2020-01-08 | 2020-06-05 | 陈刚 | Fluid slip ring for single-point mooring device |
| WO2021036722A1 (en) * | 2019-08-23 | 2021-03-04 | 山东鼎盛精工股份有限公司 | Single-upright-column mooring type wellhead production operation platform |
-
2014
- 2014-11-03 CN CN201420647799.9U patent/CN204254099U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358949A (en) * | 2014-11-03 | 2015-02-18 | 大连迪施船机有限公司 | Inner rotary tower type single-point mooring liquid rotary joint |
| CN110422294A (en) * | 2019-08-23 | 2019-11-08 | 山东鼎盛精工股份有限公司 | A kind of list column mooring formula well head production operation platform |
| WO2021036722A1 (en) * | 2019-08-23 | 2021-03-04 | 山东鼎盛精工股份有限公司 | Single-upright-column mooring type wellhead production operation platform |
| JP2022544223A (en) * | 2019-08-23 | 2022-10-17 | 山▲東▼鼎盛精工股▲フン▼有限公司 | Single upright column moored wellhead production work platform |
| JP7340894B2 (en) | 2019-08-23 | 2023-09-08 | 山▲東▼鼎盛精工股▲フン▼有限公司 | Single Upright Pole Moored Wellhead Production Work Platform |
| US11820467B2 (en) | 2019-08-23 | 2023-11-21 | Shandong Dingsheng Electromechanical Equipment Inc. | Single-upright-column mooring type wellhead production operation platform |
| CN111237567A (en) * | 2020-01-08 | 2020-06-05 | 陈刚 | Fluid slip ring for single-point mooring device |
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