CN203441446U

CN203441446U - Pressure cap

Info

Publication number: CN203441446U
Application number: CN201320463988.6U
Authority: CN
Inventors: 冒家友; 张宁; 阳建军; 乐钻; 刘义勇; 原庆东; 冯丽梅
Original assignee: China National Offshore Oil Corp CNOOC; CNOOC Deepwater Development Ltd; CNOOC China Ltd Shenzhen Branch
Current assignee: China National Offshore Oil Corp CNOOC; CNOOC Deepwater Development Ltd; China National Offshore Oil Corp Shenzhen Branch
Priority date: 2013-07-31
Filing date: 2013-07-31
Publication date: 2014-02-19
Anticipated expiration: 2023-07-31

Abstract

The utility model discloses a pressure cap, which is used for connecting and protecting an underwater manifold interface. The pressure cap comprises a base, a pipeline part, an elastic lock ring, a locked assembly, a pressure balance device and a locking assembly, wherein the base is hermetically inserted into the manifold interface; the base is provided with a central through hole and a step part formed along the circumferential direction of an outer wall surface; the pipeline part is fixed on the upper surface of the base and is communicated with the central through hole; the elastic lock ring is sleeved on the base and is supported by the step part; the locked assembly can be sleeved on the pipeline part by moving along the longitudinal direction of the pipeline part in a reciprocating way, and comprises an expanding part; the pressure balance device is transversely inserted into the pipeline part and can move between a third position and a fourth position in the reciprocating way relative to the pipeline part; the locking assembly is arranged on the locked assembly, and is matched with the pipeline part to lock the locked assembly relative to the position of the pipeline part while the locked assembly is positioned at a first position or a second position. According to the pressure cap disclosed by the utility model, the locking assembly is additionally arranged, so that the pressure cap can be prevented from being unlocked or locked unexpectedly, and the safety during installation of the pressure cap is improved.

Description

Pressure cap

Technical field

The utility model relates to the manifold system of production under water in offshore oil field, relates in particular to a kind of subsea manifold pressure cap.

Background technology

As shown in Figure 1, pressure cap 800 forms of the prior art are comparatively simple, by carrying or press down operating portion 80 on underwater robot, can tighten up or strut elastic lock ring 83 by the part 82 that struts on portable plate 81.Pressure cap 800 is locked on the interface of manifold 700 by elastic lock ring 83 exactly itself, has seal 84 on it, can on locking state, realize pressure holding function, so just can to manifold 700, carry out pressure testing under water.On pressure cap 800, also there are manifold 700 sealing joint face guard members 85, can, in setting pressure cap 800, prevent that docking port sealing surface 71 from wiping occurring and touch.In pressure recovery cap 800, underwater robot need to be opened pressure equaliser 86, so just can be communicated with the pressure of outside hydraulic pressure and manifold 700 inside, prevents Prssure lock phenomenon.After pressure balance, just can realize recovery.It is as follows that pressure cap 800 of the prior art mainly can improvement: 1,, after pressure cap 800 reclaims, need to measure the position of manifold 700 interfaces, so that following, connect special jumper pipe, the liquid in manifold could be transferred out like this.But owing to itself there is no jumper pipe on pressure cap 800, also need measurement mechanism to modify, can be placed on manifold 700 interfaces, very inconvenient, but also may break the seal 71 of manifold 700 interfaces.If seal 71 damages, manifold 700 need to be collected from sea bed so, only the day rate loss of operation boats and ships will be all units up to a million; 2,, due to the restriction of mounting shipping crane capacity, when subsea manifold 700 is installed, inside is all empty, can reduce like this weight of a part of liquid.After manifold 700 installs, in the time of need to carrying out pressure testing to it, seawater can be refilled in inside.But only depend on the pressure equaliser 86 on pressure cap 800 to carry out water filling, because its interior bone 87 diameters are about half inch, need to consume the filling time of about two days, wasted greatly operation boats and ships standby rate; 3, after pressure cap 800 is locked on manifold 700 interfaces, neither one unlocking prevention mechanism carrys out the movement of restraint plate 81, when bottom-water temperature fluctuation or bumping, portable plate 81 just may up move, build-up of pressure cap 800 accidental unlockings like this.

Utility model content

The technical problems to be solved in the utility model is, a kind of improved pressure cap is provided, and can prevent pressure cap accidental unlocking or unexpected locking.

The utility model solves the technical scheme that its technical problem adopts: a kind of pressure cap is provided, be used for connecting and protecting subsea manifold interface, comprise: for inserting hermetically the base of manifold joint, base has a central through hole and one and is formed at the stage portion that outside wall surface week makes progress; Be fixed on base upper surface and with the pipe section of central through hole conducting; The elastic lock ring that is socketed on base and is supported by stage portion; Can be along pipe section move around between a primary importance on longitudinally and a second place and be socketed on the latch assembly in pipe section, latch assembly comprises that struts a part; In primary importance, strut part and insert elastic lock ring inner side, elastic lock ring is radially strutted; In the second place, strut part and elastic lock ring and depart from; The pressure equaliser that is laterally placed through in pipe section and can moves around between the 3rd position and the 4th position with respect to pipe section, on the 3rd position, by pipe section conducting and to be communicated with pressure cap outside inner with manifold; On the 4th position, pipe section cut-off isolated pressure cap is outside inner with manifold; Also comprise locked component, locked component is arranged on latch assembly, and coordinates with pipe section, when being positioned at primary importance or the second place at latch assembly, and the locking position by latch assembly with respect to pipe section.

Preferably, latch assembly also comprises and can between primary importance and the second place, move around and be socketed on the portable plate in pipe section, struts part perpendicular to portable plate setting and is fixedly connected on portable plate; Fixedly sleeved shell on portable plate.

Preferably, strut part lower end and comprise that one for strutting the wedge-shaped part of elastic lock ring.

Preferably, in pipe section, be provided with low groove and the upper groove that latch assembly is locked in respectively to primary importance and the second place; Locked component also comprises the support portion being fixedly connected on portable plate; Be movably connected on support portion and coordinate low groove or upper groove is locked in latch assembly the stop pin of primary importance or the second place.

Preferably, stop pin outside is provided with for stop pin being inserted or pulled out the Handheld Division of upper groove or low groove.

Preferably, on support portion, have for stop pin spin locking or rotate the L shaped groove that release is pulled out; Stop pin is provided with to coordinate with L shaped groove and locks or the lock part of release.

Preferably, the position that be positioned at stage portion periphery, contacts with manifold is provided with seal; Stage portion below is provided with the sealing surface guard member for the protection of sealing surface on manifold joint.

Preferably, pressure equaliser comprises: be laterally placed through the movable block in pipe section, movable block comprises the solid section being placed through in pipe section and is arranged at the through hole in solid section; Be positioned at that pipe section is outer, handle that can stretched operation; On the 3rd position, handle be pulled outwardly and through hole by pipe section conducting; On the 4th position, handle inwardly pushes away and solid section ends pipe section; Be connected on handle, the state of the 3rd position is entered to line-locked block.

Preferably, through-hole diameter is 1.5-2.5 inch.

Preferably, also comprise with pipe section connection, for being connected the measurement interface portion of external measurement device, measurement interface portion comprises the measurement channel part being communicated with pipe section and is connected to measures on channel part, for being connected the back taper interface of external measurement device.

Enforcement the beneficial effects of the utility model are: in the pressure cap in the utility model, increased locked component, at portable plate, during in pressed status, stop pin can have been shifted onto in low groove, prevented that portable plate from moving up; When not locking, stop pin can be shifted onto in upper groove, portable plate also can not move down and cause and surprisingly lock, the safety while having increased setting pressure cap.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:

Fig. 1 is the structural representation of pressure cap in prior art;

Fig. 2 is the structural representation of pressure cap in the utility model embodiment;

Fig. 3 is the structure for amplifying schematic diagram of A part in Fig. 2;

Fig. 4 is the structural representation of the interior locked component of pressure cap in the utility model embodiment.

The specific embodiment

For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe the specific embodiment of the present utility model in detail.

Be illustrated in figure 2 the pressure cap 100 in the utility model embodiment; for connecting and protecting subsea manifold 200 interfaces, comprise base 10, elastic lock ring 30, sealing surface guard member 14, seal 13, latch assembly 40, pipe section 20, locked component 60, pressure equaliser 50, measurement interface portion 90 etc.

Base 10 is open column shape base 10, for inserting hermetically manifold 200 interfaces, comprises that a central through hole 11 and one are formed at the stage portion 12 making progress in outside wall surface week.

Elastic lock ring 30 is socketed in base 10 column peripheries, and is positioned at the position of stage portion 12 tops, and understandably, stage portion 12 provides a support force making progress that elastic lock ring 30 is supported on base 10 to elastic lock ring 30.

Sealing surface guard member 14 is arranged on stage portion 12 belows, for the protection of the sealing surface 210 on manifold 200 interfaces.Understandably, on manifold 200 interfaces, be provided with the sealing surface 210 that composite material is made, the interface position being connected with pressure cap 100 for sealing manifold 200.When base 10 inserts manifold 200 interface, sealing surface guard member 14 can prevent that the sealing surface 210 on manifold 200 interfaces from touching and causing sealing surface 210 to damage with base 10 or other hard part wipings, avoided the sealing performance of sealing surface 210 to reduce.Understandably, sealing surface guard member 14 is made by composite materials such as epoxy resin.

Seal 13 is socketed on stage portion 12 peripheries, is positioned on the curved surface position that stage portion 12 contacts with manifold 200.Understandably, seal 13 infiltrates the places such as elastic lock ring 30 of stage portion 12 tops for preventing liquid, and build-up of pressure cap 100 is connected unexpected situation such as unstable grade with manifold 200.

Latch assembly 40 can be along pipe section 20 moves around between a primary importance on longitudinally and a second place and is socketed in pipe section 20.Latch assembly 40 comprises portable plate 42, struts part 41 and shell 43.

Portable plate 42 can move around and be socketed in pipe section 20 between primary importance and the second place.Understandably, portable plate 42 is circular portable plate 42.

As shown in Figures 2 and 3, strut part 41 and arrange and be fixedly connected on portable plate 42 perpendicular to portable plate 42, coordinate manifold 200 is locked on pressure cap 100 with elastic lock ring 30.Strut part 41 lower ends and comprise a wedge-shaped part 411, wedge-shaped part 411 is for strutting elastic lock ring 30.

Shell 43 is fixedly sleeved on portable plate 42, for the protection of the manifold 200 and base 10 that are positioned at shell 43 inside, pressure cap 100 inside is opened with extraneous liquid is isolated.

Press down portable plate 42, portable plate 42 drives and struts part 41, shell 43 moves down, and latch assembly 40 is in primary importance, and the wedge-shaped part 411 that struts part 41 inserts elastic lock ring 30 inner sides, elastic lock ring 30 is radially strutted to manifold 200 and pressure cap 100 lockings; On carry portable plate 42, portable plate 42 drives to strut on part 41, shell 43 and moves, latch assembly 40 is in the second place, the wedge-shaped part 411 that struts part 41 departs from elastic lock ring 30, manifold 200 and pressure cap 100 releases.

Pipe section 20 be fixed on base 10 upper surfaces and with central through hole 11 conductings of base 10.In pipe section 20, be provided with the low groove 21 and the upper groove 22 that coordinate locking with locked component 60, low groove 21 and upper groove 22 are locked in primary importance and the second place by latch assembly 40 respectively.

As shown in Fig. 2 and Fig. 4, locked component 60 is arranged on latch assembly 40, and coordinates with pipe section 20, with when latch assembly 40 is positioned at primary importance or the second place, and the locking position by latch assembly 40 with respect to pipe section 20.Locked component 60 comprises support portion 61, stop pin 62 and Handheld Division 63.

Support portion 61 is fixedly connected on portable plate 42, and understandably, support portion 61 can move around between the primary importance on longitudinally and the second place along pipe section 20 and move up and down along with latch assembly 40.On support portion 61, have L shaped groove 64, for stop pin 62 from L shaped groove 64 spin locking or rotation release pull out.

Stop pin 62 is movably connected on support portion 61 and coordinates low groove 21 or upper groove 22 is locked in latch assembly 40 in primary importance or the second place.Stop pin 62 is provided with to coordinate with L shaped groove 64 and is rotated locking or rotates the lock part 65 that release is pulled out.

Handheld Division 63 is positioned at stop pin 62 outsides, for stop pin 62 is inserted or pull out upper groove 22 or low groove 21.

When latch assembly 40 presses to primary importance from the second place, underwater robot overturns 90 ° to vertical direction by Handheld Division 63 along continuous straight runs, make the lock part 65 on stop pin 62 rotate release from L shaped groove 64, be pulled outwardly and stretch Handheld Division 63, lock part 65 longer groove from L shaped groove 64 is pulled out, thereby make stop pin 62 pull out upper groove 22, then press down portable plate 42, drive support portion 61 to be displaced downwardly to relative with low groove 21, underwater robot inwardly pushes away Handheld Division 63 again, by lock part 65 along inwardly pushing away on groove longer on L shaped groove 64, thereby stop pin 62 is pushed to low groove 21, Handheld Division 63 is vertically overturn to 90 ° to horizontal direction, lock part 65 is snapped on groove shorter on L shaped groove 64, thereby make stop pin 62 be locked at low groove 21, when latch assembly 40 is carried to the second place from primary importance, in like manner, Handheld Division 63 along continuous straight runs are overturn to 90 ° to vertical direction, make the lock part 65 on stop pin 62 rotate release from L shaped groove 64, be pulled outwardly and stretch Handheld Division 63, lock part 65 longer groove from L shaped groove 64 is pulled out, thereby make stop pin 62 pull out low groove 21, then on, carry portable plate 42, on drive support portion 61, move to relative with upper groove 22, underwater robot inwardly pushes away Handheld Division 63 again, by lock part 65 along inwardly pushing away on groove longer on L shaped groove 64, thereby stop pin 62 is pushed to upper groove 22, Handheld Division 63 is vertically overturn to 90 ° to horizontal direction, lock part 65 is snapped on groove shorter on L shaped groove 64, thereby make stop pin 62 be locked at upper groove 22.

As shown in Figure 2, pressure equaliser 50 is laterally placed through in pipe section 20 and can between the 3rd position and the 4th position, moves around with respect to pipe section 20.Pressure equaliser 50 comprises the movable block 51 being placed through in pipe section 20 and is positioned at handle 52 outside pipe section 20, is connected to the block 53 on handle 52.

Movable block 51 is laterally placed through in pipe section 20, comprises solid section 54 and is arranged at the through hole 55 in solid section 54.Through hole 55 diameters are 1.5-2.5 inch.

Handle 52, for can stretched operation for underwater robot, be positioned at pipe section 20 outsides.Understandably, handle 52 shapes can roughly take the shape of the letter U, the shape such as oval.

Block 53 one end are connected on handle 52, and the other end is vacant and nestle in pipe section 20, for the state of the 3rd position is locked.

On the 3rd position, handle 52 is pulled outwardly, the through hole 55 of movable block 51 is positioned at the intersection of pipe section 20 and pressure equaliser 50, by pipe section 20 conductings and be communicated with pressure cap 100 outside with manifold 200 inside, now handle 52 drives block 53 to move, the vacant end of block 53 is pushed against to pipe section 20, block 53 is stuck between pipe section 20 and handle 52 the state locking of the 3rd position; On the 4th position, handle 52 inwardly pushes away, the solid section 54 of movable block 51 is positioned at the intersection of pipe section 20 and pressure equaliser 50, by pipe section 20 cut-offs isolated pressure cap 100 outsides and manifold 200 inside, now handle 52 drives blocks 53 to move, and on the vacant one end of block 53, moves and nestles in pipe section 20.

Measurement interface portion 90 is connected to pipe section 20 tops and is communicated with pipe section 20, for connecting external measurement device.Measurement interface portion 90 comprises measures channel part 91 and interface 92.

Measuring channel part 91 and be communicated with pipe section 20, is pipe-like.

Interface 92 is back taper, is connected to measure channel part 91 tops and for connecting external measurement device.

The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in several improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a pressure cap, for connecting and protecting subsea manifold (200) interface, comprising:

For inserting hermetically the base (10) of described manifold (200) interface, described base (10) has a central through hole (11) and one and is formed at the stage portion (12) making progress in outside wall surface week;

Be fixed on described base (10) upper surface and with the pipe section (20) of described central through hole (11) conducting;

Be socketed on described base (10) elastic lock ring (30) upper and that supported by described stage portion (12);

Can be along described pipe section (20) move around between a primary importance on longitudinally and a second place and be socketed on the latch assembly (40) in described pipe section (20), described latch assembly (40) comprises that struts a part (41); In described primary importance, described in strut part (41) and insert described elastic lock ring (30) inner side, described elastic lock ring (30) is radially strutted; In the described second place, described in strut part (41) and described elastic lock ring (30) and depart from;

The pressure equaliser (50) that is laterally placed through in described pipe section (20) and can moves around between the 3rd position and the 4th position with respect to described pipe section (20), on described the 3rd position, by (20) conducting of described pipe section and be communicated with described pressure cap (100) outside with described manifold (200) inside; On described the 4th position, described pressure cap (100) outside and described manifold (200) inside are ended and isolated to described pipe section (20);

It is characterized in that, also comprise locked component (60), described locked component (60) is arranged on described latch assembly (40), and coordinate with described pipe section (20), with when described latch assembly (40) is positioned at described primary importance or the described second place, the locking position by described latch assembly (40) with respect to described pipe section (20).

2. pressure cap according to claim 1, is characterized in that, described latch assembly (40) also comprises:

Can be socketed on the portable plate (42) in described pipe section (20) moving around between described primary importance and the described second place, described in strut part (41) and arrange and be fixedly connected on described portable plate (42) perpendicular to described portable plate (42);

Fixedly sleeved shell (43) on described portable plate (42).

3. pressure cap according to claim 1, is characterized in that, described in strut part (41) lower end and comprise that one for strutting the wedge-shaped part (411) of described elastic lock ring (30).

4. pressure cap according to claim 2, is characterized in that, is provided with the low groove (21) and the upper groove (22) that described latch assembly (40) are locked in respectively to described primary importance and the described second place in described pipe section (20); Described locked component (60) also comprises the support portion (61) being fixedly connected on described portable plate (42); Being movably connected in described support portion (61) goes up and coordinates described low groove (21) or described upper groove (22) described latch assembly (40) to be locked in to the stop pin (62) of described primary importance or the described second place.

5. pressure cap according to claim 4, is characterized in that, described stop pin (62) outside is provided with for described stop pin (62) being inserted or pulled out the Handheld Division (63) of described upper groove (22) or low groove (21).

6. pressure cap according to claim 4, is characterized in that, has for described stop pin (62) spin locking or rotate the L shaped groove (64) that release is pulled out on described support portion (61); Stop pin (62) is provided with to coordinate with L shaped groove (64) and locks or the lock part (65) of release.

7. pressure cap according to claim 1, is characterized in that, the position that be positioned at described stage portion (12) periphery, contacts with described manifold (200) is provided with seal (13); Described stage portion (12) below is provided with the sealing surface guard member (14) for the protection of sealing surface (210) on described manifold (200) interface.

8. pressure cap according to claim 1, is characterized in that, described pressure equaliser (50) comprising:

Laterally be placed through the movable block (51) in described pipe section (20), described movable block (51) comprises the solid section (54) being placed through in described pipe section (20) and is arranged at the through hole (55) in described solid section (54);

Be positioned at that pipe section (20) is outer, handle (52) that can stretched operation; On described the 3rd position, described handle (52) be pulled outwardly and described through hole (55) by described pipe section (20) conducting; On described the 4th position, described handle (52) inwardly pushes away and described solid section (54) ends described pipe section (20); And

Be connected on described handle (52), the state of described the 3rd position is entered to line-locked block (53).

9. pressure cap according to claim 8, is characterized in that, described through hole (55) diameter is 1.5-2.5 inch.

10. according to the pressure cap described in claim 1 to 9 any one, it is characterized in that, also comprise that described measurement interface portion (90) comprises the measurement channel part (91) being communicated with described pipe section (20) and is connected on described measurement channel part (91), for being connected the back taper interface (92) of described external measurement device with described pipe section (20) connection, for being connected the measurement interface portion (90) of external measurement device.