CN213419052U

CN213419052U - Slurry tank partition device

Info

Publication number: CN213419052U
Application number: CN202021831519.1U
Authority: CN
Inventors: 李树刚; 郭嘉宁; 许�鹏; 马超; 郑道林; 陈明刚; 岳宗林; 田国栋; 张阳; 韩鹏; 郑凯
Original assignee: CNOOC Energy Technology and Services Ltd; CNOOC Energy Development of Equipment and Technology Co Ltd
Current assignee: CNOOC Energy Technology and Services Ltd; CNOOC Energy Development of Equipment and Technology Co Ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-11
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a mud groove partition device, which comprises a partition device body, a flashboard, a control rod, a sealing cover and a sealing gasket, wherein the control rod is rotationally connected with the flashboard; the limiting sleeve is provided with a sliding hole, the top of the control rod is provided with a connector, and the control rod is in sliding fit with the sliding hole; still include the scavenge pipe, be provided with the purge orifice on the scavenge pipe, the scavenge pipe is used for wasing sealed the pad. Clean water, air or other cleaning media are connected into the cleaning pipe, the positions of the flashboard groove, the sealing surface, the inner cavity of the shell and the like are washed by the cleaning media which are discharged from the jet flow in the cleaning hole on the cleaning pipe, rock debris flows back to the mud pit, the accumulation of particle substances such as the rock debris is prevented, the self-cleaning function is realized, and the sealing effect is improved.

Description

Slurry tank partition device

Technical Field

The utility model relates to a mud groove off device belongs to offshore platform module rig mud clean system technical field.

Background

The mud purification system is the main process system for low-pressure mud in the drilling machine module. In the drilling process, a drill bit drills into broken rocks, the drilling fluid carries rock debris to the platform, and the rock debris in the drilling fluid is removed through the solid control system to keep the performance of the drilling fluid. In the mud circulating system, mud returned from a wellhead enters a vibrating screen for treatment through a diversion box, larger particle rock debris in drilling fluid is screened and removed, and the treated drilling fluid is guided through a mud tank and can be discharged to a rock debris tank or enter a sand setting tank and a degassing tank for continuous treatment. Therefore, the mud pit needs to be provided with a partition device to switch the flow direction of the drilling fluid. In addition, the drilling fluid overflows from the DES mud return tank to the DSM mud return tank and then is shunted to each mud tank by the mud return tank, and here the mud tank also needs to have a partition device to complete the switching function.

In a conventional project, a butterfly valve is arranged at a mud groove, and the price of a 16-inch butterfly valve in the market is about six ten thousand yuan RMB. Therefore, the valve is not economical if the valve is arranged as the mud groove partition device, and the specific partition device is arranged in the drilling fluid to realize the drilling fluid interception function due to the fact that the drilling fluid contains solid particles.

At present, offshore platform module rig mud guiding gutter and mud returning groove are upper portion open device, and what conventional module rig used here is butterfly valve or simple steel sheet and slot as cut-off equipment, and main problematic has three points: 1) the large inserting plate causes the overlarge weight and is inconvenient to operate; 2) the rock debris in the slot is accumulated, and the drilling fluid is in series flow due to the structural problem of the slot; 3) the lower valve with the size (16 inches) is high in manufacturing cost and poor in project economic performance.

Therefore, a technical scheme with a self-cleaning function and improved sealing effect is urgently needed in the prior art.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is realized through the following technical scheme.

A mud groove partition device comprises a device body, a flashboard, a control rod, a sealing cover and a sealing gasket, wherein the control rod is rotatably connected with the flashboard; the threaded sleeve is provided with a threaded hole, the control rod is provided with a threaded section, the top of the control rod is provided with a connector, and the threaded section of the control rod is in threaded fit with the threaded sleeve; still include the scavenge pipe, be provided with the purge orifice on the scavenge pipe, the scavenge pipe is used for wasing sealed the pad.

Further, the casing includes flashboard groove, sealing gasket groove, washing tube seat, the flashboard groove be used for holding the flashboard sealing gasket inslot is provided with sealed the pad and is located four angles in flashboard groove, it is used for holding the scavenge pipe and is located the outside in sealing gasket groove to wash the tube seat.

Furthermore, the purge tube sets up in the outside of sealed pad, and the purge tube is provided with a plurality of purge holes one towards the sealed one side of filling up, and is a plurality of the radial setting of purge tube is followed to the axial of purge hole one.

Further, the sealing gasket comprises a supporting plate and a rubber gasket.

Furthermore, a plurality of transverse branch pipes are arranged on the side wall of the cleaning pipe, and cleaning holes II are formed in the transverse branch pipes.

Furthermore, a blind hole for accommodating the transverse branch pipe is formed in the rubber pad, a spray hole communicated with the blind hole is formed in the surface, in contact with the flashboard, of the rubber pad, and the spray holes correspond to the cleaning holes II in the transverse branch pipe one to one.

Furthermore, the spray hole comprises a small hole and a gap, the radius of the small hole is smaller than that of the second cleaning hole, the gap is arranged along the radial direction of the small hole, and the sum of the radius of the small hole and the length of the gap is smaller than or equal to that of the second cleaning hole.

Further, the bottom end of the cleaning tube is closed, preferably by a plug.

Further, the backup pad is the steel sheet, the rubber pad material is oil-resistant rubber, the material aluminum alloy of flashboard.

Further, the sealing cover is used for sealing the top of the shell and is provided with a through hole through which the flashboard passes and a cleaning pipe hole through which the cleaning pipe passes.

The utility model discloses compare in prior art's advantage and lie in:

1. the utility model discloses mud pit off device is provided with the scavenge pipe, in the use, go into the clear water to the intraductal pump of scavenge, air or other medium, jet out from the washing by the purge orifice on the scavenge pipe, utilize the efflux to seal the inside detritus that stops of pad and mud pit off device and wash, prevent that mud detritus from piling up at flashboard groove, sealed face and mud pit off device are inside, realize self-cleaning function, prevent that solid particle from wearing and tearing sealed face, increase sealed effect, the drilling fluid is not the scurry flow.

2. The flashboard adopts the aluminum alloy material, reduces flashboard weight, is convenient for control. The sealing gasket is formed by combining a steel plate and an oil-resistant rubber gasket, the steel plate supports the oil-resistant rubber gasket, deformation of the rubber gasket is reduced, sealing effect is affected, the corrosion-resistant oil-resistant rubber gasket is adopted, oil resistance and corrosion resistance are improved, and the service life is prolonged.

3. The cleaning pipe sets up in sealed the outside of filling up, and the purge orifice radially sets up along the cleaning pipe, and the high-pressure fluid who jets out from the purge orifice radiates to all around, is convenient for form the turbulent flow, washes the detritus or the solid particle at each corner, increases the cleaning performance.

4. Set up the purge orifice on the horizontal bleeder of scavenge pipe, set up aperture and gap at sealed pad relevant position, directly wash increase cleaning performance to accumulational detritus or solid particle, prevent that the detritus granule from invading the scavenge pipe. When the flashboard is sealed, the oil-proof rubber pad is extruded, and the small holes and the gaps are sealed by utilizing elastic deformation, thereby preventing the influence of flushing liquid on the sealing,

drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic perspective view of a mud trough partition device.

Fig. 2 is an exploded view of the mud trough partition.

FIG. 3 is a schematic structural diagram of a partition device body.

Fig. 4 is a schematic cross-sectional view of the housing.

FIG. 5 is a combination ram and lever view.

Fig. 6 is a schematic structural view of the sealing cover.

Fig. 7 is a schematic view of a gasket structure.

FIG. 8 is a schematic view of a first cleaning tube.

FIG. 9 is a schematic cross-sectional view of a first cleaning tube.

FIG. 10 is a schematic view of the first cleaning tube in combination with a rubber pad and a shutter.

Fig. 11 is a schematic view of a second rubber pad.

FIG. 12 is a schematic view of a second cleaning tube.

Fig. 13 is a schematic view of a nozzle.

Reference numerals: 1-device body, 11-shell, 12-support frame, 13-swivel nut, 2-flashboard, 3-control rod, 31-threaded section, 32-connector, 4-sealing cover, 41-through hole, 42-cleaning tube hole, 5-sealing gasket, 51-support plate, 52-rubber pad, 521-blind hole, 522-spray hole, 5221-small hole, 5222-gap, 6-cleaning tube, 61-cleaning hole I, 62-transverse branch tube and 63-cleaning hole II.

Detailed Description

The present invention will be further described with reference to the following detailed description.

The mud pit partition device shown in fig. 1-13 comprises a device body 1, a gate plate 2, a control rod 3, a sealing cover 4 and a sealing gasket 5, wherein the control rod 3 is rotatably connected with the gate plate 2, the partition device body 1 comprises a shell 111, a support frame 12 and a threaded sleeve 13, the lower end of the support frame 12 is arranged on the top surface of the shell 11, and the upper end of the support frame 12 is connected with the threaded sleeve 13. The threaded sleeve 13 is provided with a threaded hole, the control rod 3 is provided with a threaded section 31, and the top of the control rod 3 is provided with a connector 32. The connector 32 is connected with a driving mechanism such as a handle or a motor. The threaded section 31 of the control rod 3 is threadedly engaged with the threaded sleeve 13. The casing 111 includes flashboard groove 111, sealing gasket groove 112, washing pipe groove 113, and flashboard groove 111 is used for holding flashboard 2, is provided with sealed pad 5 in the sealing gasket groove 112 and is located four angles of flashboard groove 111, and washing pipe groove 113 is used for holding washing pipe 6 and is located the outside of sealing gasket groove 112. The gasket 5 includes a support plate 51 and a rubber pad 52. The sealing cover 4 is used for sealing the top of the housing 11, and the sealing cover 4 is provided with a through hole 41 through which the shutter 2 passes and a cleaning tube hole 42 through which the cleaning tube 6 passes. The mud groove isolating device further comprises a cleaning pipe 6, a cleaning hole is formed in the cleaning pipe 6, and the cleaning pipe 6 is used for cleaning the sealing gasket 5.

In the first embodiment, the cleaning tube 6 is disposed outside the gasket 5 and at the center line of the two gaskets. A plurality of first cleaning holes 61 are formed in one surface, facing the sealing gasket 5, of the cleaning pipe 6, and the axial direction of the plurality of first cleaning holes 61 is arranged along the radial direction of the cleaning pipe 6. When the cleaning medium passes through such radially arranged cleaning openings, the jet formed is directed radially and does not form a laminar, but turbulent flow. The washing of each hidden corner can be realized to the cleaning medium of turbulent state, increases cleaning performance, does benefit to particulate matter's suspension moreover, further prevents that particulate matter's subsides and pile up.

Further, in order to prevent the deposition of particulate matter in the gaps between the cleaning pipe 6 and the gasket 5 and the shutter 2, it is preferable that the gasket 5 side and the cleaning pipe 6 side are sealingly engaged, and the shutter 2 side is adapted to the cleaning pipe 6 side. When the shutter 2 is closed, the side of the shutter 2 is in sealing contact with the cleaning pipe.

In the second embodiment, a plurality of lateral branch pipes 62 are provided on the side wall of the cleaning pipe 6, and a second cleaning hole 63 is provided on the lateral branch pipe 62. The rubber pad 52 is provided with a blind hole 521 for accommodating the transverse branch pipe 62, one surface of the rubber pad 52 contacting the shutter 2 is provided with a spray hole 522 for communicating the blind hole 521, and the spray hole 522 corresponds to the second cleaning hole 63 on the transverse branch pipe 62 one by one. In this embodiment, directly set up the purge orifice on the rubber pad, the cleaning medium is direct to the granule material washing of deposit on flashboard groove and sealed face, has increased the impact force, and clear effect is better.

Further, the nozzle 522 includes an aperture 5221 and a slit 5222, the slit 5222 is arranged along the radial direction of the aperture 5221, and the sum of the radius of the aperture 5221 and the length of the slit 5222 is less than or equal to the radius of the second cleaning hole 63. The spray holes 522 on the rubber pad are arranged in a structure of small holes and gaps, when the gate board 2 is closed, the gate board 2 extrudes the rubber pad 52, the rubber pad 52 elastically deforms, the small holes 5221 and the gaps 5222 are closed, and the influence of the spray holes on sealing is reduced. In addition, the small holes and the gaps can also block particulate matters in an open state, and the pollution to the cleaning pipe and the deposition of solid particles are prevented.

Furthermore, the bottom end of the cleaning tube 6 is closed, and can be plugged by a plug or other plugging modes. The supporting plate 51 may be a steel plate or a stainless steel plate, etc., to increase its supporting effect on the rubber pad 52. The rubber pad 52 is made of anti-corrosion oil-resistant rubber, so that the service life of the sealing pad is prolonged. The material aluminum alloy of flashboard 2 or other high strength light material reduce the weight of flashboard, increase the result of use.

The utility model discloses a cleaning medium can adopt clear water, air or other medium that are convenient for acquire, can high-pressure cleaning medium in order to improve the cleaning performance. When the flashboard is opened, the cleaning medium in the cleaning pipe flows out from the cleaning hole in a jet mode, and the debris or other particulate matters in the flashboard groove, the sealing surface and the inner cavity of the shell are washed and flow back to the mud groove, so that the accumulation of the debris or other particulate matters is prevented, and the self-cleaning function is realized. When the flashboard is closed, the cleaning hole on the cleaning pipe is closed by the flashboard or the spray hole on the rubber pad is closed under the action of elastic deformation, so that the influence of a cleaning medium on sealing is prevented.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art can easily conceive changes or substitutions within the technical scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a mud groove cuts off device, includes device body (1), flashboard (2), control lever (3), sealed lid (4), sealed pad (5), control lever (3) and flashboard (2) rotate to be connected its characterized in that: the partition device body (1) comprises a shell (11), a support frame (12) and a threaded sleeve (13), the lower end of the support frame (12) is arranged on the top surface of the shell (11), and the upper end of the support frame (12) is connected with the threaded sleeve (13); the screw sleeve (13) is provided with a screw hole, a threaded section (31) is arranged on the control rod (3), the top of the control rod (3) is provided with a connector (32), and the threaded section (31) of the control rod (3) is in threaded fit with the screw sleeve (13); still include scavenge pipe (6), be provided with the purge orifice on scavenge pipe (6), scavenge pipe (6) are used for wasing sealed pad (5).

2. The mud trough partition device of claim 1, wherein: casing (11) include flashboard groove (111), sealing pad groove (112), wash tub groove (113), flashboard groove (111) are used for holding flashboard (2) sealing pad groove (112) are located four angles of flashboard groove (111) just be provided with sealed pad (5) in sealing pad groove (112), wash tub groove (113) and be located the outside of sealing pad groove (112) and be used for holding scavenge pipe (6).

3. The mud trough partition device of claim 1, wherein: the cleaning pipe (6) is arranged on the outer side of the sealing gasket (5), and one surface, facing the sealing gasket (5), of the cleaning pipe (6) is provided with a plurality of first cleaning holes (61) which are arranged in the radial direction of the cleaning pipe (6) along the axial direction of the first cleaning holes (61).

4. The mud trough partition device of claim 1, wherein: the sealing gasket (5) comprises a supporting plate (51) and a rubber gasket (52).

5. The mud trough partition device of claim 1, wherein: the side wall of the cleaning pipe (6) is provided with a plurality of transverse branch pipes (62), and the transverse branch pipes (62) are provided with second cleaning holes (63).

6. The mud trough partition device according to claim 4, wherein: the rubber gasket (52) is internally provided with a blind hole (521) for accommodating the transverse branch pipe (62), one surface of the rubber gasket (52) contacting the gate plate (2) is provided with spray holes (522) communicated with the blind hole (521), and the spray holes (522) correspond to the second cleaning holes (63) on the transverse branch pipe (62) one by one.

7. The mud trough partition device according to claim 6, wherein: the nozzle hole (522) includes an orifice (5221) and a slit (5222), the slit (5222) being radially disposed along the orifice (5221).

8. The mud trough partition device of claim 1, wherein: the bottom end of the cleaning pipe (6) is closed.

9. The mud trough partition device according to claim 4, wherein: the supporting plate (51) is a steel plate, the rubber pad (52) is made of oil-resistant rubber, and the flashboard (2) is made of aluminum alloy.

10. The mud trough partition device of claim 1, wherein: the sealing cover (4) is used for sealing the top of the shell (11), and the sealing cover (4) is provided with a through hole (41) for accommodating the flashboard (2) to pass through and a cleaning pipe hole (42) for accommodating the cleaning pipe (6) to pass through.