CN109763776A - A kind of gas hydrates solid state exploitation bimetallic tube string two-way bridge-type connector - Google Patents
A kind of gas hydrates solid state exploitation bimetallic tube string two-way bridge-type connector Download PDFInfo
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- CN109763776A CN109763776A CN201910164817.5A CN201910164817A CN109763776A CN 109763776 A CN109763776 A CN 109763776A CN 201910164817 A CN201910164817 A CN 201910164817A CN 109763776 A CN109763776 A CN 109763776A
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- Prior art keywords
- connector
- bridge
- tube
- gas hydrates
- solid state
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- 150000004677 hydrates Chemical class 0.000 title claims abstract description 18
- 239000007787 solid Substances 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000009826 distribution Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000013535 sea water Substances 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 21
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The present invention discloses a kind of gas hydrates solid state exploitation bimetallic tube string two-way bridge-type connector, the connector is that internal screw thread is connect with the inner tube of major diameter double-layer structure pipe, outer tube with major diameter double-layer structure pipe is then to be bolted, and causes junction to loosen when preventing internal rotating；There are two bridge-type runners inside connector, it is respectively turned on the outer chamber and inner chamber body of two sides major diameter double-layer structure pipe, since there are transmission shafts inside connector, the movable sealing structure of extrusion pressing type is then set as between the passageway bridge mouth inside connector, passageway bridge is vertical direct current channel, passway cross sectional shape at connector inner cavity is rectangle, is set as inclined-plane by water impact end face at the deflecting of passway.The advantage of the invention is that high pressure sea water and slurry mixture can be shunted orderly, passageway bridge area of passage increases, can efficiently conveying high-pressure seawater and gas hydrates, and structure is simple, small in size, stable connection.
Description
Technical field
The present invention relates to exploitation of gas hydrates technical field more particularly to a kind of gas hydrates solid states
Exploit bimetallic tube string two-way bridge-type connector.
Technical background
Gas hydrates are one of the energy that the current whole world is paid close attention to the most, and as new energy, the reserves in the whole world are huge
Greatly, and clean and effective, be play the role of in future source of energy strategy it is vital.But its mining method is not yet mature, tradition
Recovery method is costly, without safety assurance, really can not be used to be commercialized exploitation, then challenge in terms of ocean more huge
Greatly.Zhou Shouwei academician then proposes deep water shallow layer gas sea bed gas hydrate solid state fluidizing production technique, reduces shallow
The layer possible environmental risk of decomposition of hydrate achievees the purpose that green is controllably exploited.
In the exploitation of sea-bottom shallow sea bed gas hydrate solid state fluidizing, conventional gas and oil need to be replaced using double layer continuous pipe
The mono-layer tube of exploitation reaches while downward conveying high-pressure seawater, can also be delivered up the effect of gas hydrates.It
In the drilling and mining process of right gas hydrate, it is necessary first to which on the one hand high pressure sea water impulse turbine motor rotation, motor control
Bit creeps into exploitation of gas hydrate, on the other hand drives the mud of pump rotation suction underground and gas hydrates mixed
Object is closed, is delivered to ground after gas hydrates are separated.
And since pump and turbine motor volume are larger, be respectively positioned on the inner cavity of double-layer structure pipe string, and between connected by transmission shaft
It connects, in order to realize the deep water shallow layer gas sea bed gas hydrate solid state fluidizing exploitation based on double-layer structure pipe string, needs
Being reliably connected between the double-layer structure pipe string where guarantee pump and turbine motor；Connected between pump and turbine motor by transmission shaft
It connects, needs to guarantee effective shunting of high pressure sea water and slurry mixture, and cross-mixing will not occur；Gas hydrates are solid
State particle then needs to guarantee that the latus rectum size in channel meets traffic condition, not will cause channel blockage；The sea of impulse turbine motor
Water pressure is higher, then causes impact vibration by also needing to reduce high pressure sea water at jointing.Summary of the invention
Present invention aims at pump and turbine horses when being to provide a kind of exploitation for sea bed gas hydrate solid state fluidizing
Up to the bridge-type connector of the double-layer structure pipe at place, internal passageway bridge solves the double-layer structure pipe where pump and turbine motor
Between connectivity problem, regular screw threads connect and are bolted the connectivity problem solved between two bimetallic tubes, and it is logical to expand runner
Diameter solves the big flow transmission problem of trandfer fluid, and the latus rectum of runner exit, which increases, reduces highly pressurised liquid with the inclined-plane that is hit
Pressure drop and vibration problem caused by deflecting is flowed.
To achieve the above object, the present invention adopts the following technical scheme: in the two-way bridge-type connector passageway bridge be located at connect
Head is external (45), is parallel to axis, is entering connector inner cavity (46) Shi Zeng great channel cross-section, and the lateral surface of deflecting is outward tiltedly
Angle (43), two passes respectively account for half in the distribution of connector radial cross-sectional area, guarantee that area of passage is maximum；Bridge-type connector peace
It mounted in the upper end of the major diameter double-layer structure pipe where turbine motor, is connected by screw bolts with outer tube (8), is used with inner tube (9)
Regular screw threads connection；Simultaneously where pump major diameter double-layer structure pipe lower end, be connected by screw bolts (3) with outer tube (1), and it is interior
(2) are managed to connect using regular screw threads；O-ring seals (7), connector inner cavity are equipped in the junction with major diameter double-layer structure pipe
Transmission shaft (6) are connected with, the movable sealing structure (5) of extrusion pressing type are set as between the passageway bridge mouth inside connector, then in connector
Step (405) are equipped at movable sealing structure, seal groove (404) is located at step medium position, on transmission shaft (6) and inside connector
Rounded corner step also is provided at sealing.
The invention has the following advantages that
High pressure sea water and slurry mixture can orderly be shunted；Radial bridge-type cross sectional area is big, and inflow-rate of water turbine is big；Into
Increase channel cross-section when entering connector inner cavity, the outside of deflecting is outside bevelling, is caused to reduce pressure and reduce fluid deflecting
Impact endurance test shock；The outer tube of connector and double-layer structure pipe is connected as being bolted, reliable and stable；It is equipped at dynamic sealing inside connector
Step guarantees the normal rotation and the orderly conveying of fluid of transmission shaft.
Detailed description of the invention
Fig. 1 is the cross-sectional view that two-way bridge-type connector is connect with Dual-layer pipe
Fig. 2 is the structure chart of two-way bridge-type connector
Fig. 3 is the structure chart of two-way bridge-type connector and transmission shaft
Fig. 4 is the vertical view axonometric drawing of two-way bridge-type connector
Fig. 5 is the runner enlarged drawing of two-way bridge-type connector
Description of symbols:
The outer tube of major diameter double-layer structure pipe where 1- pump；The inner tube of major diameter double-layer structure pipe where 2- pump；3- bolt；
4- two-way bridge-type connector；5- extrusion pressing type dynamic sealing；6- transmission shaft；7-O type sealing ring；Major diameter bilayer knot where 8- turbine motor
The outer tube of structure pipe；The inner tube of major diameter double-layer structure pipe where 9- turbine motor；The fitting inlet of 401- high pressure sea water；402- days
The connector outlet of right gas hydrate；403- threaded hole；404- seal groove；The limited step of 405- transmission shaft；406- high pressure sea water
Connector outlet；The fitting inlet of 407- gas hydrates；41- connector internal screw thread；42- bolt hole；43- bore passages mouth
Inclined end face；44- seals extended surface；45- passageway bridge；The passway of 46- connector inner cavity；The external screw thread of 47- connector；61- is passed
Rounded corner step at moving axis dynamic sealing
Specific embodiment
As shown in Figure 1 to 4, a kind of gas hydrates solid state exploits bimetallic tube string two-way bridge-type connector, jackshaft
Formula channel is vertical direct current channel (45), is distributed on the outside of connector, and passway (46) cross sectional shape at connector inner cavity is square
Shape, the end that is hit are set as inclined end face (43)；The bridge-type connector is mounted on the major diameter double-layer structure pipe where turbine motor
Upper end is connected by screw bolts (3) with outer tube (8), is connect with inner tube (9) using regular screw threads；Major diameter is double where pump simultaneously
The lower end of layer structural tube, is connected by screw bolts (3) with outer tube (1), is connect with inner tube (2) using regular screw threads；With major diameter
The junction of double-layer structure pipe is equipped with O-ring seals (7), and the dynamic of extrusion pressing type is set as between the passageway bridge mouth inside connector
Sealing structure (5) is then equipped with step (405) at the movable sealing structure of connector, and seal groove (404) is located at step medium position,
On transmission shaft (6) with rounded corner step (61) also are provided at connector inner sealing.
Using the above structure, when solid state fluidizing is exploited, high pressure sea water is by under the double-layer structure pipe outer chamber where pump
Row, into the outer passage (401) of two-way bridge-type connector, is transferred to the inner chamber body (406) of two-way bridge-type connector, with transmission shaft (6)
Axial downlink reach turbine motor position, impact motor rotation, motor rotation then pass through transmission shaft (6) drive pump rotation
Carry out swabbing action；The gas hydrates that suction comes up pass through the double-layer structure pipe outer chamber uplink where turbine motor, into
Another outer passage (407) for entering two-way bridge-type connector is transferred to the upper lumen body (402) of two-way bridge-type connector, with transmission shaft
Axial uplink reach pump position continue up conveying.
The present invention includes but is not limited to above embodiment, any to meet the claims or specification description, is met
With principles disclosed herein and novelty, the method for inventive features, technique, product, protection scope of the present invention is each fallen within
Within.
Claims (4)
1. a kind of gas hydrates solid state exploits bimetallic tube string two-way bridge-type connector, it is characterised in that: passageway bridge is perpendicular
Straight direct current channel (45), is distributed on the outside of connector, and passway (46) cross sectional shape at connector inner cavity is rectangle, and passway becomes
Inclined-plane (43) are set as by water impact end face to place；Bridge-type connector is mounted on the major diameter double-layer structure pipe where turbine motor
Upper end, (3) are bolted with outer tube (8), are connect with inner tube (9) by regular screw threads；It is big straight that connector is located at pump place
(3) are bolted with outer tube (1) in the lower end of diameter double-layer structure pipe, are connect with inner tube (2) by regular screw threads；With it is big
The junction of diameter bilayer structural tube is equipped with O-ring seals (7), and extrusion pressing type is equipped between the passageway bridge mouth inside connector
Movable sealing structure (5).
2. a kind of gas hydrates solid state as described in claim 1 exploits bimetallic tube string two-way bridge-type connector, feature
Be: connector inner cavity is connected with the transmission shaft (6) of connection pump and turbine motor, is equipped with and squeezes between the passageway bridge mouth inside connector
The movable sealing structure (5) of die mould, including step (405) and seal groove (404), on transmission shaft (6) and at connector inner sealing
Rounded corner step (61) also are provided with, to realize effective sealing when transmission shaft rotation, prevent from that cross-mixing occurs when shunting.
3. a kind of gas hydrates solid state as described in claim 1 exploits bimetallic tube string two-way bridge-type connector, feature
Be: the outer tube of bridge-type connector and major diameter bimetallic tube is to be bolted (3), and junction is made close equipped with small-sized step (44) extension
Cover is equipped with bolt hole (42) on the outside of step, and connector is that regular screw threads are connect with the inner tube of major diameter bimetallic tube, connector top
For internal screw thread (41), lower end is external screw thread (47), and is equipped with sealing surface.
4. a kind of gas hydrates solid state as described in claim 1 exploits bimetallic tube string two-way bridge-type connector, feature
Be: passageway bridge is located on the outside of connector, is parallel to axis, (403) increase channel cross-section when entering connector inner cavity, at deflecting
Be inclined-plane by water impact end face, two passes respectively account for half in the distribution of connector radial cross-sectional area, guarantee area of passage most
Greatly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164817.5A CN109763776A (en) | 2019-03-05 | 2019-03-05 | A kind of gas hydrates solid state exploitation bimetallic tube string two-way bridge-type connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164817.5A CN109763776A (en) | 2019-03-05 | 2019-03-05 | A kind of gas hydrates solid state exploitation bimetallic tube string two-way bridge-type connector |
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| Publication Number | Publication Date |
|---|---|
| CN109763776A true CN109763776A (en) | 2019-05-17 |
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|---|---|---|---|
| CN201910164817.5A Pending CN109763776A (en) | 2019-03-05 | 2019-03-05 | A kind of gas hydrates solid state exploitation bimetallic tube string two-way bridge-type connector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810060A (en) * | 2020-09-02 | 2020-10-23 | 西南石油大学 | Double-layer pipe microwave heating short joint for hydrate conveying |
| US10822927B2 (en) | 2018-04-24 | 2020-11-03 | Southwest Petroleum University | Device and method for solid-state fluidized mining of natural gas hydrates in shallow seabed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10822927B2 (en) | 2018-04-24 | 2020-11-03 | Southwest Petroleum University | Device and method for solid-state fluidized mining of natural gas hydrates in shallow seabed |
| CN111810060A (en) * | 2020-09-02 | 2020-10-23 | 西南石油大学 | Double-layer pipe microwave heating short joint for hydrate conveying |
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