CN204126590U - The pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering - Google Patents
The pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering Download PDFInfo
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- CN204126590U CN204126590U CN201420535630.4U CN201420535630U CN204126590U CN 204126590 U CN204126590 U CN 204126590U CN 201420535630 U CN201420535630 U CN 201420535630U CN 204126590 U CN204126590 U CN 204126590U
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Abstract
The pneumatic device that is flexible coupling of the utility model offshore drilling supporting platform follow-up centering provides the pneumatic device that is flexible coupling of a kind of follow-up centering, is applied to the connection between offshore drilling supporting platform and other platforms.The gasholder of this device that is flexible coupling with cylinder and the piston cylinder Trinity, compact conformation; The gas that gasholder stores supplements the difference of cylinder institute air demand in real time, and piston cylinder is by the compression of the upper and lower gas to chamber of cylinder or the active force of expansion and inside and outside telescopic spring, and common equilibrium platform oscillation load, adjusts radial displacement automatically; Centralizer realizes follow-up centering, make cylinder and piston cylinder keep concentric, and device for adjusting deviation completes angle tuningout, ensures that device for adjusting deviation upper surface keeps level; Upper guide combines lower guider and realizes radially-directed effect, makes the axes coincide of cylinder and piston cylinder, is sealed simultaneously by the combined stuffing hermetically-sealed construction of seal; Automatic inflating device device ensures automatic inflating device or closes gas, and pressure safety valve realizes air pressure and promptly discharges, and package unit is easy to dismounting, operation and maintenance.
Description
Technical field
The utility model is applicable to the connector between marine deep water hydrocarbon field and marginal oil field platform, particularly a kind of offshore drilling supporting platform with can the pneumatic device that is flexible coupling of follow-up centering when being connected between other platforms.
Background technology
Along with the continuous propelling of marine deep water hydrocarbon field and marginal oil field strategy, the platform construction of deepwater oil-gas development will have more scale, deepwater floating platform is very responsive to the weight of upper chunk, for reducing the area occupied of Platform Deck and alleviating upper chunk weight, the necessary drilling devices such as derrick when chunk at an upper portion thereof only being arranged workover treatment often considered by deep water platform, and drilling well or beat support module and the ancillary facility of adjust well operation, and the life building of associative operation personnel and required outfit is then arranged in special offshore drilling supporting platform.
Need to configure special connector when being connected between offshore drilling supporting platform with the deep water platforms such as floating.At present, abroad due to reasons such as technical know-hows, there is not yet the bibliographical information of regarding connector design principle and CONSTRUCTED SPECIFICATION aspect so far; Domesticly often adopt the fixed form of welding trestle etc. and connecting thing when being connected between packaged type offshore boring island with jacket fixed platform, and the mode connected between offshore drilling supporting platform to the deep water platforms such as floating not yet carries out studying also not relevant through engineering approaches application achievements so far, meanwhile deep water platform is in drilling well or to beat between adjust well operational period and vibration and drift can constantly occur, and makes existing fixing trestle etc. connect the platform connected mode of things no longer applicable.
For this reason, be necessary according to the actual condition such as vibration and drift between the deep water platform operational periods such as floating, by employing new technology, new method and processing technology, research and develop the pneumatic device that is flexible coupling of novel follow-up centering, to realize the connection between offshore drilling supporting platform and other deep water platforms, reach the floor space reducing deep water platform and the object alleviating platform upper chunk weight simultaneously.
Summary of the invention
In order to overcome the defect and deficiency that between existing packaged type offshore boring island and jacket fixed platform, connector technique exists, and improve connected mode between domestic offshore drilling supporting platform and other platforms and be still in the present Research of starting stage, the purpose of this utility model is to provide the pneumatic device that is flexible coupling of follow-up centering when being connected between a kind of applicable offshore drilling supporting platform with the deep water platforms such as other floating.The special tectonic of this be flexible coupling device foundation pneumatic mechanism and follow-up centering mechanism, possesses compact conformation, gasholder is with cylinder and the piston cylinder Trinity, balance platform oscillation load, automatic adjustment radial displacement, cylinder and piston cylinder radially-directed, follow-up centering and angle tuningout, the features such as automatic Rapid degassing.
It is the pneumatic device that is flexible coupling of a kind of offshore drilling supporting platform follow-up centering of exploitation that the utility model solves the technical scheme that its technical problem adopts, primarily of a few part composition such as device for adjusting deviation, cylinder, gasholder, piston cylinder, upper guide, seal, lower guider, centralizer and automatic inflating device device.The pneumatic device that is flexible coupling of follow-up centering is fixed on the trestle of offshore drilling supporting platform etc. and connects thing by device for adjusting deviation, when needing to carry out operation, be connected by the deck of the deep water platforms such as centralizer and floating; When deep water platform carries out vertical vibration up or down, there is in cylinder and gasholder the gas compression of certain pressure or expansion and acting in conjunction, in piston cylinder, to balance oscillation load, adjusts radial displacement automatically in conjunction with telescopic spring; And when the drift of deep water platform occurred level or deflection, centralizer carries out follow-up centering according to spherical mechanism, ensure cylinder and piston cylinder concentric all the time, device for adjusting deviation also carries out the tuningout of respective angles thereupon simultaneously, ensures that device for adjusting deviation upper surface and centralizer lower surface remain level.
Device for adjusting deviation has been used for the angle tuningout of cylinder and piston cylinder, and ensure that the upper surface of device for adjusting deviation remains level, it comprises upper bracket, bearing cover, cylindrical roller thrust bearing, packing ring, sleeve, cross axle, oiling groove, plug screw and undersetting, its main material selection Stainless steel 316 L.Upper bracket and undersetting adopt identical structure and arrange in decussation, and wherein the base central authorities of upper bracket are processed with groove, and surrounding is furnished with screw, and realize by bolt device for adjusting deviation to connect thing connection with offshore drilling supporting platform; And the base of undersetting is fixed by welding and cylinder.The support of upper bracket and undersetting all adopts U-shaped structure, the both sides of support are processed with the dead eye be arranged symmetrically with, dead eye is outer thick interior thin, the wherein sleeve of the embedded matched in clearance with it of pore, arrange biserial cylindrical roller thrust bearing and packing ring successively in gross porosity, while realizing cross axle rotating function, balance the axially loaded of cross axle; Boss outside gross porosity is processed with screw hole, and is connected with bearing cover by screw, bearing cover central authorities are provided with cylindrical end tangs, and boss external diameter is less than the external diameter of cylindrical roller thrust bearing inner ring, to realize the location of cylindrical roller thrust bearing inner ring.Cross axle is used for realizing the tuningout of device for adjusting deviation all angles, and its material adopts 35CrMo, and profile is in " ten " font, and the axle journal that cross axle is respectively held coordinates with the cylindrical roller thrust bearing in upper bracket and undersetting dead eye successively.The bearing hole wall of upper bracket and undersetting is all processed with screwed hole, connect with the external screw thread of oiling groove, supplement the lubrication oil of cylindrical roller thrust bearing in time, oiling groove adopts column-shaped barrel structure, the inside and outside anchor ring of cylindrical shell is all processed with sealing gas thread, and the end wall of cylindrical shell is designed with the oil filler point be along the circumferential direction evenly arranged.Oiling groove internal thread hole connects with plug screw, realizes the sealing of lubrication oil.
Gas in cylinder has certain pressure and by compressing or expand balanced oscillator load, the material selection Stainless steel 316 L of cylinder and interior hard chrome plating, adopts the structure of vertical vessel, is divided into single end socket and cylinder body two parts.Cylinder top adopts oval single end socket, single end socket top is fixed by the steel pipe that welds and device for adjusting deviation, single end socket outer rim place is provided with pressure safety valve, pressure safety valve when cylinder internal gas pressure exceedes the dangerous working condition of limit value, the release pressure by mechanism automatic deflation.Single end socket is connected with cylinder body by circumferential weld, and the upper and lower of cylinder wall is processed with the sealing gas thread hole of equidistant layered arrangement respectively, and every layer of gas thread hole is along the circumferential direction evenly distributed; The inner surface of cylinder body needs to carry out milled processed, and the flange of its underpart is connected with seal by studs, and is sealed by nitrile rubber pad between two flange.
Gasholder is used for storing and the gas of cylinder equal pressure, supplements gas unnecessary in gas needed for cylinder upper and lower cavity indoor or cylinder of attracting deposit in real time, its material selection pressure vessel material Q345R, tank chamber entire body inner liner stainless steel 316L.For adapting to the needs of cylinder tolerance adjustment and ensureing the uniform property of load suffered by cylinder, be evenly arranged an even numbers gasholder outside cylinder, the structure of each gasholder is all identical with size.Each gasholder comprises upper and lower double-seal head and tank body three part, and upper cover and low head all adopt ellipsoidal structure, and are fixed by circumferential weld and tank body; Tank wall is processed with and the screwed hole of cylinder wall co-located with caliber, by installing control valve, realizes gasholder and being integrated with cylinder, and the intake and exhaust amount of gasholder can be controlled by control valve; Meanwhile, the top control valve of odd number gasholder cuts out and bottom control valve is opened, and to ensure itself and lower chamber of air cylinder room UNICOM, and the top control valve of even number gasholder opens and the cut out of bottom control valve, to ensure itself and upper chamber of air cylinder room UNICOM; The bottom design of low head has bleeder valve, for discharging the foreign material deposited in gasholder.
Upper guide and piston cylinder remain that point cantact is to realize radially-directed effect, and it comprises adjustment end cap, SDeflector and upper guide way, its main material selection Stainless steel 316 L.The diameter on adjustment end cap outer ring surface top is less than the internal diameter of cylinder block, and the bottom of outer ring surface is processed with external screw thread; Its inner ring surface top and piston cylinder outer wall form loopful rectangular recess, for placing inner spring and realizing the location of inner spring lower end, inner ring surface bottom then adopts taper seat, to regulate the radial distance of SDeflector, ensures that the outer ring surface of SDeflector and piston cylinder remains point cantact.Upper guide way adopts ladder rotary structure, its outer ring surface top and cylinder block wall form loopful rectangular recess, for placing outer spring and realizing the location of outer spring lower end, and outer ring surface mid diameter equals the internal diameter of cylinder block, and and adopt matched in clearance between cylinder, outer ring surface bottom realizes the location of upper guide on seal top by external screw thread.Upper guide way inner ring surface top is connected with adjustment end cap by internal thread, scrobicular ring is provided with in the middle part of inner ring surface, for locating evenly distributed spheroidal SDeflector, the material selection bearing steel of SDeflector, and the bottom of inner ring surface adopts taper seat, in it, place the filler identical with seal.Be drilled with class " L " shape runner in upper guide way, wherein the vertical layout of sprue and caliber are comparatively large, and secondary flow road is in tilted layout horizontal by certain angle, and lubrication oil sprays in the toroidal cavity between upper guide way and piston cylinder via auxiliary runner exit.
Seal employing combined stuffing hermetically-sealed construction realizes the sealing between cylinder and piston cylinder, and it comprises gland, filling body, sealing drum, sealing screw and rectangular seal, its main material selection Stainless steel 316 L.Sealing drum top is provided with flange and by stud, seal is fixed on the bottom of cylinder, its underpart is designed with along the circumferential direction evenly distributed boss, be drilled with the runner of arranged crosswise in boss, flow channel entry point is connected with sealing screw by screw thread, realizes the sealing of lubricating oil in runner.Sealing drum inner ring surface bottom is processed with loopful groove, and lower guider and sealing drum are by the rectangular seal in compression pocket after thread connection, and rectangular seal produces radial compensation power and auxiliary packing body seals.Gland adopts chunkization design, each gland adopts column-shaped barrel structure, its external diameter equals the inner ring surface diameter of sealing drum and the two adopts matched in clearance, the bottom of gland inner ring surface adopts the taper seat identical with upper guide, place filling body in it, the rectangular seal thus in the filler in upper guide, the filling body in gland and sealing drum realizes the static seal between cylinder and piston cylinder together; The runner identical with upper guide is drilled with in each gland, the sprue axes coincide of the axis of its sprue and upper guide and sealing drum, and secondary flow road parallels with the secondary flow road of upper guide and sealing drum, ensure to be full of lubrication oil all the time in upper guide, seal and lower toroidal cavity between guider and piston cylinder, to realize lubrication between cylinder and piston cylinder and movable sealing.
Lower guider and piston cylinder remain that linear contact lay is to realize radially-directed effect, and in conjunction with upper guide, the axis of piston cylinder are coincided all the time with cylinder-bore axis, at utmost reduce the friction between piston cylinder and cylinder.Lower guider comprises bottom end cover, molgogger and lower guide way, its main material selection Stainless steel 316 L.The surrounding of bottom end cover has been evenly arranged bolt hole, and is connected with lower guide way by tight fixed bolt.Lower guide way adopts tubular construction, and the junction of its inner ring surface upper and lower end parts is provided with the circular cone apertures bosses be along the circumferential direction evenly arranged, and the upper conical surface of molgogger embeds in this boss and realizes location.The material selection bearing steel of molgogger, and adopt two ends to be the column construction of taper seat, along the even vertical arrangement of lower guide way inner ring surface, the outer ring surface of molgogger and piston cylinder remains linear contact lay thus.
The active force that piston cylinder is applied by the compression of the upper and lower gas to chamber of cylinder or expansion and inside and outside telescopic spring, adjusts radial displacement automatically, and it is served as a contrast by setscrew nut, piston, piston, outer cylinder body and inner barrel form.The material selection calorific intensity of piston and inside and outside cylindrical shell and abrasion resistance is higher and the cast iron that linear expansion coeffcient is lower; piston face is coated with tin topping; cylinder is separated into upper and lower two chambers by piston simultaneously; air pressure in upper chamber is less than the air pressure of bottom chamber, and its difference is initially in free state for keeping interior outer spring.Piston adopts the loopful body structure of ring wall hollow, its outer ring surface carries out retrofit, and coordinate with the inner surface of cylinder body and form moving sets, outer ring surface is processed with the rectangular recess of equidistant hierarchal arrangement simultaneously, groove is divided into sipes and narrow groove, and sipes and narrow groove interlaced arrangement, the embedded piston of sipes serves as a contrast and is full of lubrication oil in narrow groove, to reduce the friction between cylinder and piston.Piston ring wall outer ring surface bottom and cylinder block wall form loopful rectangular recess, for placing outer spring and realizing the location of outer spring upper end; And inner ring surface is provided with ring-shaped clip, internal thread on clip realizes connecting between piston with outer cylinder body, the outer wall of inner ring surface bottom and outer cylinder body forms loopful rectangular recess, for placing inner spring and realizing the location of inner spring upper end, interior outer spring is arranged between cylinder and piston cylinder from inside to outside thus, and the rotation direction of interior outer spring is contrary, to balance mutual radial forces.Piston lining is used for the friction that alleviates further between piston and cylinder, its material selection Ni (nickel)-resist, adopts cross section to be the full loop configuration of rectangle, piston lining to embed in piston sipes and its outer ring surface diameter slightly larger than piston external diameter.Outer cylinder body and inner barrel all adopt cylindrical barrel, realize gasholder and are integrated with cylinder and piston cylinder, and the annular space that two cylindrical shells are formed is used as the passage of lower chamber of air cylinder room air feed, and the runner of inner barrel central authorities is as the passage of upper chamber of air cylinder room air feed.The upper and lower closed at both ends of outer cylinder body, its outer wall carries out retrofit, and top is connected with setscrew nut by external screw thread, and setscrew nut bottom embeds piston inner ring surface and its upper surface is concordant with the upper end of outer cylinder body, realizes the locking of piston on outer cylinder body.Outer cylinder body upper wall is processed with circular eyelet, lower wall is provided with turbination blind hole, and outer wall is processed with the taper eyelet of hierarchal arrangement, and every layer of eyelet is along the circumferential direction evenly arranged, upper strata eyelet is lower than the bottom face of piston on vertical, and lower floor's eyelet is concordant with gasholder control valve place disc; And eyelet is outer thick interior thin, to by lower chamber of air cylinder room, the gas entered in inside and outside cylindrical shell annular space has certain compression pressurization.Slot and lower end closed in inner barrel upper end, and its upper surface is concordant with outer cylinder body, and inner barrel lower end adopts the rounding conical surface and outer cylinder body lower wall to position, and adopts interference fit to realize the fixing of inner barrel between upper end and outer cylinder body eyelet.The upper coarse and lower fine structure that the inner ring surface employing rounding conical surface of inner barrel and the face of cylinder combine, to facilitate the gas in automatic inflating device device to enter upper chamber of air cylinder room smoothly by piston cylinder, to the gas entered in piston cylinder by upper chamber of air cylinder room, there is certain compression pressurization simultaneously.
Centralizer realizes being flexible coupling the follow-up centering of device, and make cylinder and piston cylinder remain concentric, avoid piston cylinder generation eccentric wear, it comprises centering spheroid, centering gland and centering body.The cast iron that the material selection of centering spheroid is identical with piston, adopt the structure that cylinder combines with spheroid, upper post body diameter is less than outer cylinder body external diameter and realizes connecting between centralizer with piston cylinder by welding, lower spherical surface grinding process is also processed with the loopful liquid bath of hierarchal arrangement, lubricating oil is full of in each liquid bath, and ball interior is drilled with taper circular hole, to avoid centering spheroid stress concentration.The material selection Stainless steel 316 L of centering gland and centering body, the sphere on its top all needs to carry out retrofit.Centering gland top is drilled with the rounding conical surface, and conical surface small end disc diameter is greater than the external diameter of centering spheroid top cylinder, and with the tuningout angle of the device that ensures to be flexible coupling, and its underpart is connected with centering body by internal thread.Centering body is flexible coupling by flange realization, and the deep water platform such as device and floating is tweendeck to be fixed, the sphere of centering gland and centering body upper part is in the same centre of sphere simultaneously, and all form revolute pair with centering spheroid matched in clearance, to ensure that centering spheroid is in centering gland and the intrinsic degree of freedom of centering, and its underpart is drilled with the taper seat be connected with sphere, be convenient to make-up oil at any time.
Automatic inflating device device comprises ball valve, reducing valve, electromagnetic valve, safety valve, outlet valve and pipe fitting, its source of the gas directly adopts the instrument supply gas of deep water platform synergic system, be connected to bottom piston cylinder outer cylinder body by ball valve, and be connected to bottom piston cylinder inner barrel by ball valve and reducing valve, outlet valve simultaneously on the automatic control piper of electromagnetic valve, realize automatic inflating device or close gas, to maintain the air demand in cylinder and gasholder, and ensureing that the air pressure of upper chamber of air cylinder indoor is all the time lower than lower chambers.
The technique effect that the utility model can reach is, the gasholder of this device that is flexible coupling, with cylinder and the piston cylinder Trinity, possesses the feature of compact conformation; The active force that piston cylinder is applied by the compression of the upper and lower gas to chamber of cylinder or expansion and inside and outside telescopic spring, common equilibrium platform oscillation load, thus automatically adjust radial displacement; Gasholder is used for storing and the gas of cylinder equal pressure, supplements gas unnecessary in gas needed for cylinder upper and lower cavity indoor or cylinder of attracting deposit in real time; Centralizer realizes being flexible coupling the follow-up centering of device, makes cylinder and piston cylinder remain concentric, and device for adjusting deviation completes the angle tuningout of cylinder and piston cylinder simultaneously, ensures that device for adjusting deviation upper surface remains level, avoids piston cylinder generation eccentric wear; Upper guide combines lower guider and jointly realizes radially-directed effect, and the axis of piston cylinder is coincided with cylinder-bore axis all the time; Seal employing combined stuffing hermetically-sealed construction realizes the sealing between cylinder and piston cylinder; Automatic inflating device device is by the outlet valve automatic inflating device on the automatic control piper of electromagnetic valve or close gas, and the urgent release of air pressure when pressure safety valve realizes superpressure dangerous working condition, package unit is easy to dismounting, operation and maintenance.
Accompanying drawing explanation
Fig. 1 is the typical structure sketch of the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering proposed according to the utility model.
Fig. 2 is the structure diagram of device for adjusting deviation in the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering.
Fig. 3 is the structure diagram of cylinder and gasholder in the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering.
Fig. 4 is the top view of guider and seal in the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering.
Fig. 5 is the structure diagram of piston cylinder and centralizer in the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering.
Fig. 6 is the work flow sketch of the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering.
1-device for adjusting deviation in figure, 2-cylinder, 3-gasholder, 4-piston cylinder, 5-upper guide, 6-seal, guider under 7-, 8-centralizer, 9-automatic inflating device device, 10-upper bracket, 11-bearing cover, 12-cylindrical roller thrust bearing, 13-packing ring, 14-sleeve, 15-cross axle, 16-oiling groove, 17-plug screw, 18-undersetting, 19-pressure safety valve, the mono-end socket of 20-, 21-cylinder body, 22-upper cover, 23-tank body, 24-control valve, 25-low head, 26-bleeder valve, 27-adjusts end cap, 28-SDeflector, the upper guide way of 29-, 30-gland, 31-sealing drum, 32-filling body, 33-sealing screw, 34-rectangular seal, guide way under 35-, 36-molgogger, 37-bottom end cover, 38-setscrew nut, 39-piston, 40-piston serves as a contrast, 41-outer spring, 42-inner spring, 43-outer cylinder body, 44-inner barrel, 45-centering spheroid, 46-centering gland, 47-centering body.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, but the utility model is not limited to following examples.
In FIG, the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering is made up of device for adjusting deviation 1, cylinder 2, gasholder 3, piston cylinder 4, upper guide 5, seal 6, lower guider 7, centralizer 8 and automatic inflating device device 9.The linkage editor of this device that is flexible coupling is, first the inner barrel of piston cylinder 4 is inserted in outer cylinder body, and be welded in centralizer 8, successively lower guider 7, seal 6 and upper guide 5 are inserted in the outer wall of the outer cylinder body of piston cylinder 4, and are realized by thread connection triangular fixing; Then each gasholder 3 is connected with cylinder 2, then device for adjusting deviation 1 is welded in cylinder 2; Then interior outer spring put into cylinder 2 lower chambers and piston be connected to the top of outer cylinder body, then by stud, device for adjusting deviation 1, cylinder 2 and gasholder 3 being connected with seal 6; Finally automatic inflating device device 9 is connected to the bottom of piston cylinder 4 outer cylinder body and inner barrel.
In FIG, the pneumatic device that is flexible coupling of the follow-up centering assembled connects thing by fastening bolt with offshore drilling supporting platform trestle etc. and connects.When needs carry out drilling well or play adjust well operation, this device that is flexible coupling connects thing with offshore drilling supporting platform and hangs deep water platforms such as being positioned floating, and be fixed by fastening bolt and deep water platform between decks, the pneumatic device that is flexible coupling of follow-up centering realizes the connection between offshore drilling supporting platform and other deep water platforms thus.
In FIG, when the pneumatic device that is flexible coupling of follow-up centering is debugged, first, air tight test is carried out to the whole device that is flexible coupling; Then, check whether the piston of piston cylinder 4 moves fluent flexibly in cylinder 2; Whether then, in testing fixture, whether pipeline system joint has leakage, unimpeded, and whether the switch of each pipeline valve is correct; Finally, connect the instrument air of automatic inflating device device 9, check that whether source of the gas is clean, dry.
In FIG, when the pneumatic device that is flexible coupling of follow-up centering purges, open the bleeder valve on the control valve on cylinder 2, gasholder 3 and the ball valve on automatic inflating device device 9 and reducing valve, then open the outlet valve of automatic inflating device device 9 and in piston cylinder 4, cylinder 2 and gasholder 3, inject instrument supply gas successively by pipeline, finally closing the bleeder valve on the outlet valve of automatic inflating device device 9 and gasholder 3.
In FIG, when the pneumatic device that is flexible coupling of follow-up centering carries out tonifying Qi, outlet valve on the automatic control piper of electromagnetic valve of automatic inflating device device 9, and the automatic inflating device of cylinder 2 lower chambers is realized by ball valve, the automatic inflating device of cylinder 2 upper chamber is realized by ball valve and reducing valve, after the air pressure of cylinder 2 recovers, tonifying Qi completes, by solenoid control outlet valve self-closing gas.
In fig. 2, device for adjusting deviation 1 connects thing by upper bracket 10 with offshore drilling supporting platform trestle etc. and connects.When device for adjusting deviation 1 is installed, first, cross axle 15 is inserted in the support of upper bracket 10 and undersetting 18, then, load cylindrical roller thrust bearing 12 and positioned by sleeve 14 and packing ring 13, finally, building bearing cover 11.When device for adjusting deviation 1 carries out tuningout, cross axle 15 is rotated by the cylindrical roller thrust bearing 12 in upper bracket 10 and undersetting 18, cylinder 2 and piston cylinder 4 tuningout at any angle when implementation platform vibration or drift, and keep device for adjusting deviation 1 upper end surface in level.When device for adjusting deviation 1 needs oiling, turn on plug screw 17, grease gun injects lubrication oil by oiling groove 16 in upper bracket 10 and undersetting 18.
In figure 3, cylinder 2 and device for adjusting deviation 1 are welded together by single end socket 20; When there is superpressure dangerous working condition, promptly discharge air pressure by the pressure safety valve 19 of single end socket 20 outer rim; Cylinder 2 upper chamber passes through control valve 24 and even number gasholder 3 UNICOM of cylinder body 21 higher slice layout, and cylinder 2 lower chambers passes through control valve 24 and odd number gasholder 3 UNICOM of cylinder body 21 bottom layered arrangement.The atmosphere storage of gasholder 3 is in the cavity that upper cover 22, tank body 23 and low head 25 are formed, and the foreign material in gasholder 3 are discharged by the bleeder valve 26 bottom low head 25.
In figure 3, the number that gasholder 3 is opened and closed by adjustment control valve 24 controls gasholder 3 quantity being in gas storage state; The quantity of all odd and even number gasholder 3 is identical, ensures to be in that the total quantity of the odd and even number gasholder 3 of gas storage state is identical and position is uniform, to ensure the uniform property of cylinder 2 internal gas pressure simultaneously; In addition, the required difference tolerance of supplementing of control cylinder 2 is carried out by the adjustment quantity of gasholder 3 and the aperture of control valve 24.
Guider 5 combines lower guider 7 and completes the guide effect of piston cylinder 4 in cylinder 2 together in fig. 4, the upper, is in coincidence status all the time at work with the axis of the axis and piston cylinder 4 that ensure cylinder 2.When upper guide 5 is installed, first SDeflector 28 is put into the scrobicular ring of upper guide way 29 inner ring surface, and then build adjustment end cap 27 and regulate the radial distance of SDeflector 28, final SDeflector 28 contacts with holding point between piston cylinder 4.When lower guider 7 is installed, first embedded by molgogger 36 in the boss of lower guide way 35 inner ring surface, and then build bottom end cover 37 with molgogger 36 of having good positioning, final molgogger 36 contacts with retention wire between piston cylinder 4.
In the diagram, the static seal that rectangular seal 34 bottom filler in upper guide way 29, the filling body 32 in gland 30 and sealing drum 31 forms jointly, in conjunction with upper guide 5, gland 30 and the movable sealing between lower guider 7 and piston cylinder 4, the sealing between common guarantee cylinder 2 and piston cylinder 4.When needing oiling, turn on sealing screw 33, grease gun passes through sprue and the secondary flow road injection lubrication oil of sealing drum 31, gland 30 and upper guide 5.
In Figure 5, the end face of piston 39, outer cylinder body 43 and inner barrel 44 is put on together with cylinder 2 upper and lower cavity indoor gas pressurized or expansion and outer spring 41 active force flexible with inner spring 42, then the moving sets consisted of piston 39 and cylinder 2 realizes moving radially in real time of piston cylinder 4, finally completes the device that is flexible coupling and automatically adjusts radial displacement.Piston 39 sipes embedded piston lining 40 fills lubrication oil in conjunction with in narrow groove, can effectively reduce the friction between piston 39 and cylinder body 21.Inner barrel 44, outer cylinder body 43 and cylinder body 21 are by inner and to arrange successively outward, wherein the runner of inner barrel 44 is that the upper chamber of cylinder 2 carries out air feed, and the lower chambers that the annular space that inner barrel 44 and outer cylinder body 43 are formed is cylinder 2 carries out air feed, the annular space of outer cylinder body 43 and cylinder body 21 forms the lower chambers of cylinder 2, places inner spring 42 and outer spring 41 successively from inside to outside in lower chambers.
In Figure 5, matched in clearance is adopted between the spherome surface of centering spheroid 45 and the sphere of centering gland 46 and centering body 47, ensure that centering spheroid 45 can freely rotate, the follow-up centering of implementation platform vibration or the device that is flexible coupling when drifting about, makes to remain concentric between cylinder 2 and piston cylinder 4 thus.
In figure 6, the trestles of offshore drilling supporting platform etc. connect thing to be completed by deep water platforms such as follow-up centering pneumatic be flexible coupling device and other floating and connects, under the acting in conjunction of the piston 39 of piston cylinder 4 lower chamber gas on the cylinder 2, in cylinder body 21, be in equilibrium state, outer spring 41 is in free elongation state together with inner spring 42 simultaneously.When deep water platform carries out vertical vibration, this equilibrium state is broken, when deep water platform upwards vibrates, piston cylinder 4 moves up along cylinder 2 thereupon, compression cylinder 2 upper chamber, gas in even number gasholder 3 and inner barrel 44, and cylinder 2 bottom chamber gas generation relative expansion, outer spring 41 is stretched together with inner spring 42 simultaneously, direction total force is down subject to increasing during piston cylinder 4 moves, final complete equipilibrium falls the oscillation load that deep water platform applies, the piston 39 of piston cylinder 4 is forced to move down, again the equilibrium state place of cylinder 2 cylinder body 21 is revert to, when deep water platform vibrates downwards, piston cylinder 4 moves down along cylinder 2 thereupon, compression cylinder 2 lower chambers, gas in odd number gasholder 3 and inner barrel 44 and outer cylinder body 43 annular space, and the relative expansion of cylinder 2 epicoele indoor gas, outer spring 41 is compressed together with inner spring 42 simultaneously, the total force be directed upwardly during piston cylinder 4 moves increases gradually, final complete equipilibrium falls the oscillation load that deep water platform applies, the piston 39 of piston cylinder 4 is forced to move up, and be again attributed to the equilibrium state of cylinder 2 cylinder body 21, this device that is flexible coupling completes and automatically adjusts radial displacement thus.
In figure 6, when the deep water platform occurred level drifts such as floating or deflection, centering spheroid 45 rotates corresponding angle θ with skew direction in centering gland 46 and centering body 47, cylinder 2, gasholder 3 also carry out follow-up centering with centralizer 8 together with piston cylinder 4, in this process, cylinder 2 and piston cylinder 4 remain concentric, avoid deflection wearing and tearing occur; The cross axle 15 of device for adjusting deviation 1 rotates identical angle θ by the cylindrical roller thrust bearing 12 of upper bracket 10 and undersetting 18 with cylinder 2 simultaneously, keep device for adjusting deviation 1 upper surface and centralizer 8 lower surface to remain level thus, realize cylinder 2 and piston cylinder 4 tuningout at any angle.
Claims (10)
1. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering, is characterized in that:
One device for adjusting deviation; Described device for adjusting deviation completes the angle tuningout of cylinder and piston cylinder, and upper bracket and undersetting adopt identical structure and arrange in decussation, and its support all adopts U-shaped structure; Cross axle profile is in " ten " font, and the axle journal of each end coordinates with the cylindrical roller thrust bearing in upper bracket and undersetting dead eye successively;
One cylinder; Gas in described cylinder is by compressing or expand balanced oscillator load, top adopts oval single end socket, single end socket outer rim place is provided with pressure safety valve, the upper and lower of cylinder wall is processed with the sealing gas thread hole of equidistant layered arrangement respectively, the inner surface of cylinder body needs to carry out milled processed, and the flange of its underpart is connected with seal by studs;
One gasholder; An even numbers gasholder is evenly arranged outside described cylinder, by installing control valve, realize gasholder to be integrated with cylinder, the top control valve of odd number gasholder cuts out and bottom control valve is opened, to ensure itself and lower chamber of air cylinder room UNICOM, and the top control valve of even number gasholder opens and the cut out of bottom control valve, to ensure itself and upper chamber of air cylinder room UNICOM;
One upper guide; Described upper guide and piston cylinder remain point cantact, and adjustment end cap inner ring surface bottom adopts taper seat, to regulate the radial distance of SDeflector; Be provided with scrobicular ring in the middle part of upper guide way inner ring surface, for locating evenly distributed spheroidal SDeflector, and bottom adopts taper seat, places the filler identical with seal, be drilled with class " L " shape runner in upper guide way in it;
One seal; Described seal adopts combined stuffing hermetically-sealed construction, rectangular seal in filler in upper guide, the filling body in gland and sealing drum realizes the static seal between cylinder and piston cylinder together, all the time lubrication oil is full of, to realize lubrication between cylinder and piston cylinder and movable sealing in upper guide, seal and lower toroidal cavity between guider and piston cylinder; Gland adopts chunkization design, is drilled with the runner identical with upper guide in each gland;
Guider once; Described lower guider and piston cylinder remain linear contact lay, and in conjunction with upper guide, the axis of piston cylinder is coincided all the time with cylinder-bore axis, the junction of lower guide way inner ring surface upper and lower end parts is provided with the circular cone apertures bosses be along the circumferential direction evenly arranged, and the upper conical surface of molgogger embeds in this boss and realizes location;
One piston cylinder; Described piston cylinder adjusts radial displacement automatically, and cylinder is separated into upper and lower two chambers by piston, and the air pressure in upper chamber is less than the air pressure of bottom chamber; Piston adopts the loopful body structure of ring wall hollow, and its outer ring surface coordinates with the inner surface of cylinder body and forms moving sets; Interior outer spring is arranged between cylinder and piston cylinder from inside to outside, and the rotation direction of interior outer spring is contrary; Piston lining to embed in piston sipes and its outer ring surface diameter slightly larger than piston external diameter; Outer cylinder body and inner barrel all adopt cylindrical barrel, realize gasholder and are integrated with cylinder and piston cylinder, and the annular space that two cylindrical shells are formed is used as the passage of lower chamber of air cylinder room air feed;
One centralizer; Described centralizer realizes being flexible coupling the follow-up centering of device, the structure that centering spheroid adopts cylinder to combine with spheroid, and lower spherical surface grinding process is also processed with the loopful liquid bath of hierarchal arrangement; The sphere of centering gland and centering body upper part all needs to carry out retrofit, and its sphere is in the same centre of sphere simultaneously, and all forms revolute pair with centering spheroid matched in clearance;
One automatic inflating device device; Described automatic inflating device device is connected to bottom piston cylinder inner barrel by ball valve and reducing valve, the outlet valve on the automatic control piper of electromagnetic valve, realizes automatic inflating device or closes gas, ensures that the air pressure of upper chamber of air cylinder indoor is all the time lower than lower chambers.
2. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering according to claim 1, it is characterized in that: the upper bracket of described device for adjusting deviation realizes by bolt device for adjusting deviation to connect thing connection with offshore drilling supporting platform, and the base of undersetting is fixed by welding and cylinder.
3. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering according to claim 1 and 2, it is characterized in that: the both sides of the support of described upper bracket and undersetting are processed with the dead eye be arranged symmetrically with, dead eye is outer thick interior thin, the wherein sleeve of the embedded matched in clearance with it of pore, arrange biserial cylindrical roller thrust bearing and packing ring successively in gross porosity, while realizing cross axle rotating function, balance the axially loaded of cross axle;
The boss external diameter of described bearing cover is less than the external diameter of cylindrical roller thrust bearing inner ring;
The end wall of described oiling groove cylindrical shell is designed with the oil filler point be along the circumferential direction evenly arranged.
4. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering according to claim 1, is characterized in that: every layer of gas thread hole of described cylinder block wall is along the circumferential direction evenly distributed;
Described pressure safety valve when cylinder internal gas pressure exceedes the dangerous working condition of limit value, automatic deflation and release pressure;
The structure of described gasholder is all identical with size, tank wall is processed with and the screwed hole of cylinder wall co-located with caliber, can be controlled the intake and exhaust amount of gasholder by control valve.
5. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering according to claim 1, it is characterized in that: the diameter on the adjustment end cap outer ring surface top of described upper guide is less than the internal diameter of cylinder block, its inner ring surface top and piston cylinder outer wall form loopful rectangular recess, for placing inner spring and realizing the location of inner spring lower end;
Described upper guide way outer ring surface top and cylinder block wall form loopful rectangular recess, and for placing outer spring and realizing the location of outer spring lower end, and outer ring surface mid diameter equals the internal diameter of cylinder block, and and adopt matched in clearance between cylinder;
The vertical layout of sprue in described upper guide way and caliber are comparatively large, and secondary flow road is in tilted layout horizontal by certain angle, and lubrication oil sprays in the toroidal cavity between upper guide way and piston cylinder via auxiliary runner exit.
6. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering according to claim 1, it is characterized in that: the sealing drum inner ring surface bottom of described seal is processed with loopful groove, lower guider and sealing drum are by the rectangular seal in compression pocket after thread connection, and rectangular seal produces radial compensation power and auxiliary packing body seals;
The external diameter of described gland equals the inner ring surface diameter of sealing drum and the two adopts matched in clearance, and the bottom of gland inner ring surface adopts the taper seat identical with upper guide, places filling body in it;
The axis of sprue and the sprue axes coincide of upper guide and sealing drum in described gland, and secondary flow road parallels with the secondary flow road of upper guide and sealing drum.
7. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering according to claim 1, is characterized in that: the molgogger of described lower guider adopts two ends to be the column construction of taper seat, along the even vertical arrangement of lower guide way inner ring surface.
8. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering according to claim 1, it is characterized in that: the rectangular recess piston outer ring surface of described piston cylinder being processed with equidistant hierarchal arrangement, groove is divided into sipes and narrow groove, and sipes and narrow groove interlaced arrangement, the embedded piston of sipes serves as a contrast and is full of lubrication oil in narrow groove;
Described piston ring wall outer ring surface bottom and cylinder block wall form loopful rectangular recess, for placing outer spring and realizing the location of outer spring upper end; The outer wall of inner ring surface bottom and outer cylinder body forms loopful rectangular recess, for placing inner spring and realizing the location of inner spring upper end;
The material selection Ni (nickel)-resist of described piston lining, employing cross section is the full loop configuration of rectangle.
9. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering according to claim 1 or 8, it is characterized in that: the upper and lower closed at both ends of outer cylinder body of described piston cylinder, setscrew nut bottom embeds piston inner ring surface and its upper surface is concordant with the upper end of outer cylinder body; The outer wall of outer cylinder body is processed with the taper eyelet of hierarchal arrangement, upper strata eyelet is lower than the bottom face of piston on vertical, and lower floor's eyelet is concordant with gasholder control valve place disc, and eyelet outer thick in thin;
Slot and lower end closed in the inner barrel upper end of described piston cylinder, and its upper surface is concordant with outer cylinder body, and inner barrel lower end adopts the rounding conical surface and outer cylinder body lower wall to position, and adopts interference fit to realize the fixing of inner barrel between upper end and outer cylinder body eyelet;
The upper coarse and lower fine structure that the inner ring surface employing rounding conical surface of described inner barrel and the face of cylinder combine;
The runner of the inner barrel central authorities of described piston cylinder is as the passage of upper chamber of air cylinder room air feed.
10. the pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering according to claim 1, it is characterized in that: the centering spheroid upper post body diameter of described centralizer is less than outer cylinder body external diameter and realizes connecting between centralizer with piston cylinder by welding, be full of lubricating oil in each liquid bath on lower spherical surface, and ball interior is drilled with taper circular hole;
Described centering gland top is drilled with the rounding conical surface, and conical surface small end disc diameter is greater than the external diameter of centering spheroid top cylinder;
Described centering body is flexible coupling by flange realization, and the deep water platform such as device and floating is tweendeck to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535630.4U CN204126590U (en) | 2014-09-17 | 2014-09-17 | The pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535630.4U CN204126590U (en) | 2014-09-17 | 2014-09-17 | The pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering |
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| Publication Number | Publication Date |
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| CN204126590U true CN204126590U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420535630.4U Withdrawn - After Issue CN204126590U (en) | 2014-09-17 | 2014-09-17 | The pneumatic device that is flexible coupling of offshore drilling supporting platform follow-up centering |
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| CN (1) | CN204126590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265227A (en) * | 2014-09-17 | 2015-01-07 | 中国石油大学(华东) | Offshore drilling supporting platform servo alignment pneumatic flexible connector |
-
2014
- 2014-09-17 CN CN201420535630.4U patent/CN204126590U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265227A (en) * | 2014-09-17 | 2015-01-07 | 中国石油大学(华东) | Offshore drilling supporting platform servo alignment pneumatic flexible connector |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150128 Effective date of abandoning: 20160824 |
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