CN211422886U

CN211422886U - Telescopic pipe combination device for inlet of oil return pump of drainage caisson of offshore fixed platform

Info

Publication number: CN211422886U
Application number: CN201921706992.4U
Authority: CN
Inventors: 黄健文; 王光明; 刘佳; 黄树宝; 何杨; 岑积良; 张金石
Original assignee: Offshore Oil Engineering Co Ltd
Current assignee: Offshore Oil Engineering Co Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-09-04
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a flexible pipe composite set of caisson scavenge pump import is driven and arranged to marine fixed platform, include: the caisson body, time oil pump body and telescopic tube subassembly, telescopic tube subassembly is including fixed pipe, connecting pipe and swivel pipe, the both ends of fixed pipe are connected with time oil pump body and connecting pipe respectively, the one end of swivel pipe is cup jointed in the other end of connecting pipe, the other end of swivel pipe stretches into the inside predetermined distance of caisson body, be equipped with the promotion rotary device on the swivel pipe, it includes promotion subassembly and rotatory transmission subassembly to promote the rotary device, the promotion subassembly is established on the top surface of caisson body, and the promotion subassembly is connected with the rotatory transmission subassembly of establishing on the swivel pipe, in order to drive the precession or the precession of swivel pipe on the connecting pipe or to screw out through the promotion subassembly. The utility model discloses a flexible pipe composite set is rational in infrastructure, convenient operation, leakproofness are good, have effectively improved oil return efficiency.

Description

Telescopic pipe combination device for inlet of oil return pump of drainage caisson of offshore fixed platform

Technical Field

The utility model relates to an offshore oil equipment technical field, particularly, in particular to flexible pipe composite set of caisson scavenge pump import is driven to marine fixed platform.

Background

The device for recovering waste oil by the caisson which is arranged on the offshore fixed platform usually uses a pneumatic diaphragm pump hard pipe to absorb oil, and due to the influence of tide, the sea level is lowered or lifted, so that oil can not be absorbed frequently, the oil return efficiency is lower, and the marine environment is not favorable for maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. In view of this, the utility model needs to provide a marine fixed platform who is rational in infrastructure, convenient operation, leakproofness are good, effectively improves oil return efficiency opens row caisson oil return pump import flexible pipe composite set.

The utility model provides a flexible pipe composite set of caisson scavenge pump import is driven to row by marine fixed platform, include: the improved oil return caisson comprises a caisson body, an oil return pump body and a telescopic pipe assembly, wherein the telescopic pipe assembly comprises a fixed pipe, a connecting pipe and a rotating pipe, two ends of the fixed pipe are respectively connected with the oil return pump body and the connecting pipe, one end of the rotating pipe is sleeved at the other end of the connecting pipe, the other end of the rotating pipe extends into the caisson body at a preset distance, a lifting rotating device is arranged on the rotating pipe and comprises a lifting assembly and a rotary transmission assembly, the lifting assembly is arranged on the top surface of the caisson body, and the lifting assembly is connected with the rotary transmission assembly arranged on the rotating pipe so as to drive the rotating pipe to be screwed in or out on the connecting pipe through the lifting assembly.

According to the utility model discloses an embodiment, state the rotation transmission subassembly including connecting plate and the bevel gear transmission subassembly that is L type structure, be equipped with the first connecting hole and the second connecting hole that mutually perpendicular set up on the connecting plate, the bevel gear transmission subassembly includes rolling bearing and meshing driven first bevel gear and second bevel gear, all install one in first connecting hole and the second connecting hole rolling bearing, first bevel gear with in the first connecting hole rolling bearing connects, the second bevel gear with in the second connecting hole rolling bearing connects, wherein the swivelling joint pipe is worn to locate in the second connecting hole and with second bevel gear block is connected, be equipped with in the first connecting hole and wear to locate pivot on the first bevel gear.

According to the utility model discloses an embodiment, the hoisting accessory is including establishing single gear drive subassembly, transmission pulley and cover on the caisson body top surface are located single gear drive subassembly with drive chain on the transmission pulley, drive chain's bottom cup joint in the pivot, in order to pass through single gear drive subassembly drives the rotatory pipe rotates.

According to an embodiment of the present invention, the connecting pipe is connected to the rotary pipe by a screw transmission.

According to the utility model discloses an embodiment, the bottom of connecting pipe is the external screw thread, the top of rotatory pipe is the internal thread that uses with the external screw thread cooperation.

According to the utility model discloses an embodiment, single gear drive subassembly includes the rolling gear and drives rolling gear pivoted crank, the drive chain cover is located on the rolling gear.

According to the utility model discloses an embodiment, the number of transmission pulley is two, and arranges from top to bottom along the vertical direction.

According to the utility model discloses an embodiment, fixed pipe the rotatory pipe with the connecting pipe is carbon steel seamless steel pipe.

The utility model discloses a flexible pipe composite set of caisson scavenge pump import is arranged to marine fixed platform, design into the fixed pipe, connecting pipe and the swivelling joint that connect gradually flexible pipe assembly, wherein swivelling joint and connecting pipe threaded connection are equipped with the rotation transmission subassembly on the swivelling joint, and drive the rotation of rotation transmission subassembly through promoting the subassembly and make the swivelling joint revolve round or revolve round on the connecting pipe, in time adjust the length of flexible pipe assembly during the morning and evening tides, improve oil return efficiency; furthermore, a threaded connection sleeve structure is adopted between the rotating pipe and the connecting pipe, so that the sealing performance is good, the operation is convenient and simple, and the structural design is reasonable.

Drawings

Fig. 1 is a schematic structural diagram of a telescopic pipe combination device for an inlet of an open-drain caisson and a return pump of an offshore fixed platform according to the present invention.

Fig. 2 is a schematic structural diagram of a rotary transmission assembly of a retractable pipe assembly of an inlet of an offshore fixed platform drainage caisson and a return oil pump according to the present invention.

Reference numerals: 1-caisson body; 2-oil return pump body; 3-a telescopic tube assembly; 4-lifting the rotating device; 31-a stationary tube; 32-connecting tube; 33-rotating the tube; 41-a lifting assembly; 42-a rotary drive assembly; 43-a connecting plate; 44-a bevel gear transmission assembly; 411-single gear drive assembly; 412-a drive pulley; 413-a drive chain; 433-a rotating shaft; 441-a rotary bearing; 442-a first bevel gear; 443-second bevel gear.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and fig. 2, an offshore fixed platform open caisson and return pump inlet telescopic tube combination device comprises: caisson body 1, time oil pump body 2 and flexible pipe assembly 3, flexible pipe assembly 3 is including fixed pipe 31, connecting pipe 32 and swivel pipe 33, the both ends of fixed pipe 31 are connected with time oil pump body 2 and connecting pipe 32 respectively, the other end in connecting pipe 32 is cup jointed to the one end of swivel pipe 33, the other end of swivel pipe 33 stretches into caisson body 1 inside predetermined distance, be equipped with promotion rotary device 4 on swivel pipe 33, it includes promotion subassembly 41 and rotatory transmission assembly 42 to promote rotary device 4, promotion subassembly 41 is established on the top surface of caisson body 1, and promotion subassembly 41 is connected with the rotatory transmission assembly 42 of establishing on swivel pipe 33, in order to drive the precession or the back-out of swivel pipe 33 on connecting pipe 32 through promotion subassembly 41.

The utility model discloses a flexible pipe composite set of caisson scavenge return pump import of marine fixed platform, design flexible pipe assembly 3 into fixed pipe 31, connecting pipe 32 and swivel pipe 33 that connect gradually, wherein swivel pipe 33 and connecting pipe 32 threaded connection are equipped with rotatory drive assembly 43 on swivel pipe 33, and drive rotatory drive assembly 42 through hoisting assembly 41 and rotate so that swivel pipe 33 precession or screw out on connecting pipe 32, in time adjust the length of flexible pipe assembly 3 during the morning and evening tides, improve oil return efficiency; furthermore, a threaded connection sleeve structure is adopted between the rotating pipe 33 and the connecting pipe 32, so that the sealing performance is good, the operation is convenient and simple, and the structural design is reasonable.

As shown in fig. 1 and 2, the rotation transmission assembly 42 includes a connection plate 43 and a bevel gear transmission assembly 44, which are L-shaped structures, the connection plate 43 is provided with a first connection hole and a second connection hole, which are perpendicular to each other, the bevel gear transmission assembly 44 includes a rotation bearing 441, and a first bevel gear 442 and a second bevel gear 443, which are engaged and driven, a rotation bearing 441 is installed in each of the first connection hole and the second connection hole, the first bevel gear 442 is connected to the rotation bearing 441 in the first connection hole, the second bevel gear 443 is connected to the rotation bearing 441 in the second connection hole, wherein the rotation pipe 33 is inserted into the second connection hole and engaged and connected to the second bevel gear 443, the rotation shaft 433 inserted into the first bevel gear 442 is provided in the first connection hole, and the tension of the single gear transmission assembly 411 is converted into the torsional force of the rotation pipe 33 through the engagement and transmission of the first bevel gear 442 and the second bevel, the rotary pipe 33 is screwed in or out of the connecting pipe 32, the length of the telescopic pipe component 3 is adjusted in time during the tide, the oil return efficiency is improved, the structural design is reasonable, and the operation is convenient and simple.

As shown in fig. 1 and 2, the lifting assembly 41 includes a single gear transmission assembly 411, a transmission pulley 412 and a transmission chain 413 sleeved on the single gear transmission assembly 411 and the transmission pulley 412, the bottom end of the transmission chain 413 is sleeved on a rotating shaft 433, a gear (not shown in the figure) used in cooperation with the transmission chain 413 is disposed on the rotating shaft 433, so as to drive the rotating pipe 33 to rotate through the single gear transmission assembly 411, the single gear transmission assembly 411 includes a rotating gear (not shown in the figure) and a crank (not shown in the figure) for driving the rotating gear to rotate, the transmission chain 413 is sleeved on the rotating gear, it should be understood that, during tide, the transmission chain 413 is driven to move on the transmission pulley 412 by shaking the crank, and then the first bevel gear 442 and the second bevel gear 443 in the rotation transmission assembly 42 are driven to rotate, so as to convert the pulling force generated by the transmission chain 413 into the torque force for rotating the rotating pipe 33, the rotary pipe 33 is pushed to be screwed in or out on the connecting pipe 32, so that the length of the telescopic pipe assembly 3 is adjusted in time, the bottom end of the rotary pipe 33 is always positioned in an oil layer, and the oil return efficiency is improved.

As shown in fig. 1, the connecting pipe 32 is in threaded transmission connection with the rotating pipe 33, the bottom end of the connecting pipe 32 is provided with an external thread, the top end of the rotating pipe 33 is provided with an internal thread matched with the external thread, the sealing performance of the threaded transmission connection structure is good, and the sealing performance requirement of the pneumatic diaphragm pump can be met.

As shown in fig. 1, the number of the transmission pulleys 412 is two, and the transmission pulleys are vertically arranged, so that the transmission chain 413 can be conveniently arranged, and the lifting and rotating device 4 can be conveniently used by an operator.

As shown in fig. 1, the fixed pipe 31, the rotating pipe 33 and the connecting pipe 32 are all carbon steel seamless steel pipes, which have low use cost, effectively increase the pressure resistance of the telescopic pipe assembly 3, have good corrosion resistance and long service life.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides an offshore fixed platform is opened and is arranged flexible pipe composite set of caisson scavenge pump import, includes: the improved oil return caisson comprises a caisson body, an oil return pump body and a telescopic pipe assembly, wherein the telescopic pipe assembly comprises a fixed pipe, a connecting pipe and a rotating pipe, two ends of the fixed pipe are respectively connected with the oil return pump body and the connecting pipe, one end of the rotating pipe is sleeved at the other end of the connecting pipe, and the other end of the rotating pipe extends into the caisson body for a preset distance.

2. The offshore fixed platform open caisson recirculating pump inlet telescoping tube assembly of claim 1, it is characterized in that the rotary transmission component comprises a connecting plate in an L-shaped structure and a bevel gear transmission component, the connecting plate is provided with a first connecting hole and a second connecting hole which are perpendicular to each other, the bevel gear transmission component comprises a rotating bearing, a first bevel gear and a second bevel gear which are in meshing transmission, the first connecting hole and the second connecting hole are internally provided with the rotating bearing, the first bevel gear is connected with the rotating bearing in the first connecting hole, the second bevel gear is connected with the rotating bearing in the second connecting hole, the rotating pipe penetrates through the second connecting hole and is connected with the second bevel gear in a clamping mode, and a rotating shaft penetrating through the first bevel gear is arranged in the first connecting hole.

3. The offshore fixed platform discharging caisson returning pump inlet telescopic tube combination device according to claim 2, wherein the lifting assembly comprises a single gear transmission assembly, a transmission pulley and a transmission chain, the single gear transmission assembly is arranged on the top surface of the caisson body, the transmission pulley is sleeved with the transmission chain, the transmission chain is sleeved on the single gear transmission assembly and the transmission pulley, and the bottom end of the transmission chain is sleeved on the rotating shaft so as to drive the rotating tube to rotate through the single gear transmission assembly.

4. The offshore fixed platform open caisson recirculating pump inlet telescoping tube assembly of claim 1, wherein the connecting tube is in threaded drive connection with the rotating tube.

5. The offshore fixed platform open caisson recirculating pump inlet telescoping tube assembly of claim 4, wherein the bottom end of the connecting tube is externally threaded and the top end of the rotating tube is internally threaded for use in cooperation with the external threads.

6. The offshore fixed platform open caisson and return Pump Inlet telescoping tube assembly device of claim 3, wherein the single gear drive assembly comprises a rotating gear and a crank that drives the rotating gear to rotate, the drive chain is sleeved on the rotating gear.

7. The offshore fixed platform open caisson and return Pump Inlet telescoping tube Assembly of claim 3, wherein there are two drive pulleys, arranged vertically.

8. The offshore fixed platform open caisson and scavenge pump inlet telescoping tube assembly of claim 1, wherein the fixed tube, the rotating tube and the connecting tube are seamless steel tubes of carbon steel.