CN-122008121-A - Sealing ring replacing tool for underwater double-channel connector

CN122008121ACN 122008121 ACN122008121 ACN 122008121ACN-122008121-A

Abstract

The invention discloses a sealing ring replacing tool for an underwater double-channel connector, which comprises an upper ring body and an operating handle which are connected with each other, wherein the upper ring body is provided with transition channels which are the same as the number of the upper channels of the underwater double-channel connector and correspond to each other one by one, at least two linkage dismounting systems are arranged on the upper ring body at the outer side of each transition channel, each linkage dismounting system comprises a vertical pin shaft, a transmission sliding block and a transverse clamp, the vertical pin shaft is arranged in the upper ring body and can vertically slide relative to the upper ring body, the top end of the vertical pin shaft is exposed at the outer side of the upper ring body and sleeved with an elastic piece, the bottom end of the vertical pin shaft is fixedly provided with the transmission sliding block, one end of each transverse clamp is connected with the transmission sliding block, and the other end of each transverse clamp is a clamping end and extends to the inner side of each transition channel. The sealing ring replacement tool designed by the invention can be used for assisting in dismounting an old sealing ring and installing a new sealing ring under water through the underwater robot, realizes an integrated quick replacement function and is suitable for a double-channel underwater connector.

Inventors

WANG YI
LIU TONG
HAN JINGYU
LIU JUNNAN
Fang Chenyan
Ma Suhang
AN CHEN

Assignees

中国石油大学(北京)

Dates

Publication Date: 20260512
Application Date: 20260326

Claims (10)

1. The utility model provides a sealing washer change instrument for two-channel connector under water, its characterized in that includes interconnect's last ring body and operation handle, be equipped with on the last ring body with the same and one-to-one of passageway number is used for placing the transition passageway of new and old sealing washer on the two-channel connector under water, the top and the bottom of going up the ring body all are equipped with the centering structure that carries out centering with the two-channel connector under water when changing the sealing washer, every install at least two on the last ring body outside around the transition passageway and carry out the linkage dismouting system that circumference distributes, the linkage dismouting system includes vertical round pin axle, transmission slider and horizontal holder, vertical round pin axle sets up in the inside and relative its vertical slip of last ring body, the top of vertical round pin axle exposes in the outside of last ring body and overlaps and is equipped with the elastic component, the bottom mounting of vertical round pin axle has the transmission slider, the one end of horizontal holder with the transmission slider is connected, the other end of horizontal holder is the holding end and extends to the transition passageway inboard, the transmission slider sets up to can be with the vertical motion of vertical round pin axle is horizontal holder's horizontal holder horizontal motion in order to loosen the new or clamp in the transition passageway of placing the sealing washer.
2. The tool for replacing a sealing ring of an underwater dual-channel connector according to claim 1, wherein a guide sliding groove is formed in one side wall of the transmission sliding block, the guide sliding groove is connected with the guide sliding block in a sliding manner, the guide sliding block is connected with one end of the transverse clamp holder, the transverse clamp holder is contracted outwards in the process that the guide sliding groove moves downwards along with the transmission sliding block, and extends into the transition channel in the process that the guide sliding groove moves upwards along with the transmission sliding block.
3. The tool for replacing a seal ring of an underwater two-channel connector according to claim 1, wherein a disassembly ring for disassembling an old seal ring is fixed to the top end of each transition channel, the top end face of the disassembly ring is a conical face, and the inner diameter of the disassembly ring is larger than the inner diameter of the transition channel.
4. The tool for replacing a sealing ring of an underwater dual-channel connector according to claim 1, wherein the centering structure comprises an upper centering structure for centering with an upper flange of the underwater dual-channel connector and a lower centering structure for centering with a lower flange, the upper centering structure comprises a first upper positioning groove and an upper centering groove, the edge part of the top end face of the upper ring body is provided with the first upper positioning groove in a ring shape, the top end face of the upper ring body is provided with the two upper centering grooves which are uniformly distributed in a circumference, the lower centering structure comprises a first lower positioning boss and a lower centering boss, the edge part of the bottom end face of the upper ring body is provided with the first lower positioning boss which corresponds to the first upper positioning groove and is in a ring shape, and the bottom end face of the upper ring body is provided with the two lower centering bosses which correspond to the upper centering grooves one by one.
5. The tool for replacing the sealing ring of the underwater dual-channel connector according to claim 1, wherein a second lower positioning boss is arranged on the bottom end face of the upper ring body outside each transition channel, a second upper positioning groove which is right corresponding to the second lower positioning boss is arranged on the top end face of the upper ring body outside each transition channel, a plurality of vertical guide holes which are the same as the number of the linked dismounting systems and are in one-to-one correspondence with the linked dismounting systems are arranged on the bottom wall of the second upper positioning groove, sliding cavities which are communicated with each other are arranged in the second lower positioning boss and can move in the vertical direction are arranged on the positions corresponding to the vertical guide holes, the transmission sliding block is arranged in the sliding cavities, the bottom ends of the vertical pin shafts are arranged in the vertical guide holes and extend into the sliding cavities to be connected with the transmission sliding block, the top ends of the vertical pin shafts are positioned in the second upper positioning grooves and are sleeved with the elastic pieces, transverse guide holes are arranged on the side walls of the sliding cavities, which are close to the transition channels, and the transverse holders penetrate through the transverse guide holes.
6. The tool for replacing a seal ring of an underwater dual-channel connector according to claim 5, wherein the transverse clamp comprises a moving rod and a clamping plate, one end of the moving rod is connected with the guide sliding block, the other end of the moving rod penetrates through the transverse guide hole, extends into the transition channel and is fixedly connected with the clamping plate, and a clamping cavity which is U-shaped and is used for clamping a new seal ring is formed in the clamping plate.
7. The tool for replacing a seal ring of an underwater dual channel connector of claim 1, wherein the lateral clamps in each of said ganged disassembly and assembly systems are in an extended state for clamping a new seal ring without the vertical pins being squeezed by external forces.
8. The tool for replacing a sealing ring of an underwater dual-channel connector according to claim 1, wherein an annular lower butt joint base is fixedly sleeved outside the bottom end of the upper ring body, the lower butt joint base is used for being sleeved outside a lower flange when the sealing ring is replaced, the bottom end of the lower butt joint base extends to the lower side of the upper ring body, the operating handle is fixed on the peripheral wall of the lower butt joint base, an annular elastic limit bulge is connected to the inner side wall of the lower butt joint base, the top end face and the bottom end face on the cross section of the limit bulge are mutually symmetrical inclined planes, and when the lower butt joint base is sleeved on the lower flange, the limit bulge is clamped at the bottom end of the lower flange to limit the vertical displacement of the lower butt joint base.
9. The tool for replacing a sealing ring of an underwater dual-channel connector according to claim 5, wherein a positioning hole penetrating through the outer peripheral wall of the upper ring body is formed in the side wall, away from the transition channel, of each vertical guide hole, a positioning pin shaft is connected to the positioning hole in a threaded mode, and one end of each positioning pin shaft is attached to the vertical pin shaft.
10. The tool for replacing a sealing ring of an underwater dual-channel connector of claim 1, wherein the number of the linkage dismounting systems outside each transition channel is two and is uniformly distributed in circumference.

Description

Sealing ring replacing tool for underwater double-channel connector Technical Field The invention relates to the technical field of seal ring replacement in offshore oil engineering, in particular to a seal ring replacement tool for an underwater double-channel connector. Background The sealing technology is a key technology in the underwater connection technology, and the metal sealing ring is an important component in the underwater connection system. In a deepwater environment, the sealing ring needs to bear the dual pressure of the high-temperature and high-pressure oil gas inside and the low-temperature deepwater outside, and the failure risk is difficult to avoid. Once the sealing ring fails, oil gas leakage is extremely easy to cause, and serious harm is brought to economic development and ecological environment. Therefore, to effectively prevent such risks, the seal ring needs to be replaced and maintained regularly. Since subsea connectors typically operate at a water depth of over 2000m, humans cannot do the associated auxiliary work at that water depth. Therefore, the current main mode of replacing the sealing ring is to hoist the whole underwater connector from the seabed to the land for replacement operation, but the mode not only needs to put in a great deal of manpower, material resources and financial cost, but also has low operation efficiency. And the sealing ring replacement needs to be completed with the assistance of an underwater Robot (ROV). At present, the scheme of the sealing ring replacement tool which can be assembled and disassembled once and is completed by assistance of an underwater robot is rarely researched, and the sealing ring replacement tool which is applicable to a double-channel connector and can be assembled and disassembled quickly underwater is not available. Therefore, the present invention provides a tool for replacing a seal ring for an underwater dual-channel connector to solve the above-mentioned problems Disclosure of Invention The invention aims to solve the technical problems that the whole underwater connector is required to be lifted from the seabed to the land to carry out replacement operation when the existing sealing ring is replaced, but the mode not only requires a great deal of manpower, material resources and financial cost to be input, but also has lower operation efficiency. The invention provides a sealing ring replacing tool for an underwater double-channel connector, which comprises an upper ring body and an operation handle which are connected with each other, wherein the upper ring body is provided with transition channels which are the same as the number of the upper channels of the underwater double-channel connector and are in one-to-one correspondence and are used for placing new and old sealing rings, the top end and the bottom end of the upper ring body are respectively provided with a centering structure which is centered with the underwater double-channel connector when the sealing rings are replaced, at least two linkage dismounting systems which are circumferentially distributed around the transition channels are arranged on the upper ring body outside each transition channel, each linkage dismounting system comprises a vertical pin shaft, a transmission sliding block and a transverse clamping device, the vertical pin shaft is arranged inside the upper ring body and can vertically slide relative to the upper ring body, the top end of the vertical pin shaft is exposed outside the upper ring body and sleeved with an elastic piece, the bottom end of the vertical pin shaft is fixedly provided with the transmission sliding block, one end of the transverse clamping device is connected with the transmission sliding block, the other end of the transverse clamping device is a clamping end and extends to the inner side of the transition channel, and the transmission sliding block is arranged to be capable of converting the vertical movement of the vertical pin shaft into transverse movement of the transverse clamping device to the transverse movement of the clamping device so as to place the new sealing rings in the transition channel or clamping the new sealing rings. In the specific implementation mode of the sealing ring replacing tool for the underwater double-channel connector, a guide sliding groove which is obliquely arranged is formed in one side wall of the transmission sliding block, the guide sliding block is connected with the guide sliding block in a sliding mode, the guide sliding block is connected with one end of the transverse clamp holder, the transverse clamp holder is contracted outwards in the process that the guide sliding groove moves downwards along with the transmission sliding block, and the guide sliding groove stretches out of the transition channel in the process that the guide sliding groove moves upwards along with the transmission sliding block. In the specific implementation mode of the sealing ring replacin