CN114060034A - Vertical lift pump pipe system of deep sea mining - Google Patents
Vertical lift pump pipe system of deep sea mining Download PDFInfo
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- CN114060034A CN114060034A CN202111264471.XA CN202111264471A CN114060034A CN 114060034 A CN114060034 A CN 114060034A CN 202111264471 A CN202111264471 A CN 202111264471A CN 114060034 A CN114060034 A CN 114060034A
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- 238000005065 mining Methods 0.000 title claims abstract description 22
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 25
- 239000011707 mineral Substances 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 14
- 230000005484 gravity Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000005514 two-phase flow Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 9
- 238000004891 communication Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/12—Combinations of two or more pumps
- F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a vertical lifting pump pipe system for deep sea mining, which is characterized in that through a brand new design of the overall structure of the lifting pump pipe system, a power unit of each power node adopts two centrifugal pumps, and a system consisting of the centrifugal pumps, pipelines and valves is symmetrically distributed on a horizontal plane, so that the vertical stress of the whole vertical pipeline system is ensured to be uniform, and through the communication design of pump valve pipelines, the whole lifting system is ensured to flow smoothly without blockage and also can flow back smoothly. The vertical lifting pump pipe system provided by the invention is vertically installed, and when the double pumps run under the normal working condition, the flow path of a system pipeline is changed by opening and closing the electromagnetic valve in the system under the fault working condition of the pump unit, so that the lifting system is ensured to be free from blockage. The invention has simple structure, meets the technical requirements of the lifting system, and ensures that the whole lifting system can still normally operate when the pump unit fails.
Description
Technical Field
The invention relates to the field of fluid machinery under deep sea mining working conditions, in particular to a vertical lifting pump pipe system for deep sea mining.
Background
The deep sea bottom contains abundant mineral resources, the deep sea mineral resources become the international competitive focus, and who owns the deep sea mining technology and occupies the 'highest point' of the development of the marine mineral resources. The mining method comprises the following steps of taking an offshore mining ship, an ore pulp pump hydraulic lifting system and a seabed crawler belt ore collector as the current mining technical scheme in China, taking the ore pulp pump hydraulic lifting system as a main component and a core technology in a mining system, and determining the success probability of the mining system to a great extent. Compared with advanced countries, the deep sea ore resource mining technology in China has a large gap, and the research and development process must be accelerated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a vertical lifting pump pipe system for deep sea mining, which takes a conveying unit as a power node, the power node takes high efficiency, no blockage, large particle diameter trafficability and smooth backflow as design criteria and technical requirements, and the performance of the lifting system is ensured to meet the technical requirements and the long-term stable operation of the whole lifting system is also ensured by the overall structural design of a mixed conveying pump unit, a valve and a pipeline on the power node. The invention mainly aims at a hydraulic lifting system of an ore pulp pump, a conveying unit is a power unit node in a long-distance mixed conveying lifting system, and a novel structural type of the power node of the lifting system is provided, so that the performance of the lifting system can meet the technical requirements, and the long-term stable operation of the whole lifting system can be ensured.
A vertical lifting pump pipe system for deep sea mining comprises a plurality of conveying units, wherein each conveying unit comprises a first lifting pipe, a first bifurcated pipe, a first electromagnetic valve, a first mixed conveying pump, a first bracket, a second electromagnetic valve, a second bifurcated pipe, a second lifting pipe, a third bifurcated pipe, a third electromagnetic valve, a second bracket, a second mixed conveying pump, a spiral connecting pipe, a fourth electromagnetic valve, a fourth bifurcated pipe, a fifth electromagnetic valve and a truss, the first lifting pipe and the second lifting pipe are connected and communicated through a fifth electromagnetic valve, and the other end of the first lifting pipe is connected with the other end of the second lifting pipe of the last conveying unit; the first bifurcated pipe and the fourth bifurcated pipe are arranged on the first riser and communicated with each other, and the second bifurcated pipe and the third bifurcated pipe are arranged on the second riser and communicated with each other; the first mixed transportation pump and the second mixed transportation pump are connected in series through a spiral connecting pipe, two bifurcate ports are arranged on the spiral connecting pipe and are respectively connected with a second electromagnetic valve and a fourth electromagnetic valve, an outlet of the first mixed transportation pump is connected to a first bifurcate pipe through the first electromagnetic valve, and a third bifurcate pipe is connected to an inlet of the second mixed transportation pump through a third electromagnetic valve; the first bracket and the second bracket are both arranged in the truss, the first mixed delivery pump is arranged on the first bracket, and the second mixed delivery pump is arranged on the second bracket; the first lifting pipe, the first bifurcated pipe, the second lifting pipe, the third bifurcated pipe and the fourth bifurcated pipe are all arranged in the truss; the other end of the second lifting pipe is connected with the other end of the first lifting pipe of the next conveying unit or inserted into a relay bin filled with deep sea mineral particles, and a medium of the deep sea mineral particles is conveyed through the first mixed conveying pump or/and the second mixed conveying pump, wherein the medium is liquid-solid two-phase flow or liquid-solid-gas three-phase flow; the deep sea mineral particle medium mode of different pipelines under multiple working conditions is realized by selectively controlling the actions of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve and the fifth electromagnetic valve.
Further, the lift pump pipe system is vertically installed, the first mixed transportation pump and the second mixed transportation pump are power units of the conveying unit, the working mode of the conveying unit comprises a conventional working condition, under the conventional working condition, the first electromagnetic valve and the third electromagnetic valve are opened, the second electromagnetic valve, the fourth electromagnetic valve and the fifth electromagnetic valve are closed, and mineral multiphase media in the lift pipe II sequentially pass through the third bifurcated pipe, the third electromagnetic valve, the second mixed transportation pump, the spiral connecting pipe, the first mixed transportation pump and the first bifurcated pipe and finally flow to the lift pipe I.
Furthermore, the working mode of the conveying unit further comprises a pump unit fault working condition, when the mixed transportation pump breaks down, the third electromagnetic valve and the fourth electromagnetic valve are opened, the first electromagnetic valve, the second electromagnetic valve and the fifth electromagnetic valve are closed, the mineral multiphase medium in the second lifting pipe sequentially passes through the third bifurcated pipe, the third electromagnetic valve, the second mixed transportation pump, the spiral connecting pipe, the fourth electromagnetic valve and the fourth bifurcated pipe and finally flows to the first lifting pipe, and the condition that a lifting system is not blocked under the single pump fault working condition is guaranteed.
When the second mixed transportation pump breaks down, the first electromagnetic valve and the second electromagnetic valve are opened, the third electromagnetic valve, the fourth electromagnetic valve and the fifth electromagnetic valve are closed, mineral multiphase media in the second lifting pipe sequentially pass through the second bifurcated pipe, the second electromagnetic valve, the spiral connecting pipe, the first mixed transportation pump, the first electromagnetic valve and the first bifurcated pipe and finally flow to the first lifting pipe, and the situation that a lifting system is not blocked under the condition of single pump failure is guaranteed.
When the first mixed transportation pump and the second mixed transportation pump simultaneously have fault working conditions, the solenoid valve five is opened, the solenoid valve one, the solenoid valve two, the solenoid valve three and the solenoid valve four are closed, mineral multiphase media in the lifting pipe two directly flow to the lifting pipe one through the solenoid valve five, and the lifting system is guaranteed not to be blocked under the fault working conditions of the double pumps through the mixed transportation pump units on other power nodes.
Furthermore, the first mixed delivery pump and the second mixed delivery pump have the same specification and are circumferentially and symmetrically arranged; the first bifurcated pipe and the second bifurcated pipe have the same specification as the third bifurcated pipe and the fourth bifurcated pipe and are symmetrically arranged; the trusses are distributed in a triangular mode in the horizontal direction, the first lifting pipe serves as the center of gravity of the trusses in the horizontal direction, the center of gravity of the whole pump pipe system is guaranteed to be overlapped in the central axis of the lifting pipe, and deflection of the long-distance lifting system is reduced.
Furthermore, inlets of the first mixing and transporting pump and the second mixing and transporting pump are downward, pump shafts are installed along the vertical direction, volute outlet directions of the first mixing and transporting pump and the second mixing and transporting pump are vertical and upward structural types, and side walls in the volutes of the first mixing and transporting pump and the second mixing and transporting pump are horizontally inclined upward, so that once backflow occurs, mineral particles can smoothly flow back from the volutes and the impellers, and the possibility of blockage is reduced.
Further, the width of an impeller outlet of the impeller of the first mixing and conveying pump or the second mixing and conveying pump and the minimum overflowing size of an impeller flow channel are both larger than 40% of the diameter of the impeller inlet, and front and rear cover plates of the impeller are horizontally inclined upwards by taking the installation direction of the impeller as a reference, so that particles with large particle sizes can smoothly pass through the impeller. The outlet diffusion section structure of the first volute or the second volute of the mixing pump is that the outlet direction is changed from the axial surface direction to the axial surface normal direction.
The invention has the following beneficial effects:
according to the vertical lifting pump pipe system for deep sea mining, due to the brand new design of the overall structure of the lifting pump pipe system, the power unit of each power node adopts two centrifugal pumps, the pipelines and the valves are symmetrically distributed on the horizontal plane, the vertical stress of the whole vertical pipeline system is guaranteed to be uniform, the whole lifting system is guaranteed to flow smoothly and not to be blocked due to the communication design of the pump valve pipelines, and the whole lifting system can still run normally when the pump units break down.
Drawings
FIG. 1 is a schematic diagram of a vertical lift pump system according to the present invention;
FIG. 2 is a top plan view of a truss arrangement of a vertical lift pump tubing system according to the present invention;
FIG. 3 is a schematic structural view of a centrifugal type mixing pump according to the present invention;
description of reference numerals:
1-a first riser; 2-a bifurcated pipe I; 3, a first electromagnetic valve; 4-a mixing and conveying pump I; 5, a first bracket; 6-electromagnetic valve II; 7-a bifurcated pipe II; 8-a second riser; 9-a bifurcated pipe III; 10-electromagnetic valve III; 11-bracket two; 12-a second mixing and conveying pump; 13-a spiral connecting pipe; 14-electromagnetic valve four; 15-bifurcated pipe four; 16-electromagnetic valve five; 17-a truss; 41-a volute; 42-an impeller; 43-inlet flange.
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 or similar 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 illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, the vertical lift pump pipe system for deep sea mining according to the present invention includes a plurality of conveying units, each conveying unit includes a lift pipe 1, a branch pipe 2, a solenoid valve 3, a mixing pump 4, a bracket 5, a solenoid valve 6, a branch pipe 7, a lift pipe 8, a branch pipe 9, a solenoid valve 10, a bracket 11, a mixing pump 12, a spiral connecting pipe 13, a solenoid valve 14, a branch pipe 15, a solenoid valve five 16, and a truss 17, one end of the lift pipe 1 is connected and communicated with one end of the lift pipe 8 through the solenoid valve five 16, and the other end of the lift pipe 1 is connected with the other end of the lift pipe 8 of the previous conveying unit; the first bifurcation 2 and the fourth bifurcation 15 are arranged on and communicated with the first riser 1, and the second bifurcation 7 and the third bifurcation 9 are arranged on and communicated with the second riser 8; the first mixing and transporting pump 4 and the second mixing and transporting pump 12 are connected in series through a spiral connecting pipe 13, two bifurcate ports are arranged on the spiral connecting pipe 13 and are respectively connected with a second electromagnetic valve 6 and a fourth electromagnetic valve 14, an outlet of the first mixing and transporting pump 4 is connected to a first bifurcate pipe 2 through a first electromagnetic valve 3, and a third bifurcate pipe 9 is connected to an inlet of the second mixing and transporting pump 12 through a third electromagnetic valve 10; the first bracket 5 and the second bracket 11 are both arranged in the truss 17, the first mixed transportation pump 4 is arranged on the first bracket 5, and the second mixed transportation pump 12 is arranged on the second bracket 11; the first lifting pipe 1, the first bifurcation pipe 2, the second bifurcation pipe 7, the second lifting pipe 8, the third bifurcation pipe 9 and the fourth bifurcation pipe 15 are all arranged in a truss 17; the other end of the second lifting pipe 8 is connected with the other end of the first lifting pipe 1 of the next conveying unit or inserted into a relay bin filled with deep-sea mineral particles, and a medium of the deep-sea mineral particles is conveyed through the first mixed conveying pump 4 or/and the second mixed conveying pump 12, wherein the medium is liquid-solid two-phase flow or liquid-solid-gas three-phase flow; the deep sea mineral particle medium mode of different pipelines under multiple working conditions of a single conveying unit is realized by selectively controlling the actions of the first electromagnetic valve 3, the second electromagnetic valve 6, the third electromagnetic valve 10, the fourth electromagnetic valve 14 and the fifth electromagnetic valve 16. According to the invention, through the overall structural design of the mixing and conveying pump unit, the valve and the pipeline of the vertical lifting pump pipe system, the pump pipe mixing and conveying lifting system meets the technical requirements of high efficiency, no blockage, large particle diameter trafficability, smooth backflow and the like, and can ensure that the whole lifting system can still normally operate when the pump unit fails.
The vertical lifting pump pipe system is vertically installed, the first mixed transportation pump 4 and the second mixed transportation pump 12 are power units of the conveying unit, and the working mode of the conveying unit is divided into a conventional working condition and a pump unit fault working condition:
under a normal working condition, the first electromagnetic valve 3 and the third electromagnetic valve 10 are opened, the second electromagnetic valve 6, the fourth electromagnetic valve 14 and the fifth electromagnetic valve 16 are closed, and mineral multiphase media in the second riser pipe 8 sequentially pass through the third bifurcated pipe 9, the third electromagnetic valve 10, the second mixing and conveying pump 12, the spiral connecting pipe 13, the first mixing and conveying pump 4 and the first bifurcated pipe 2 and finally flow to the first riser pipe 1.
When the first mixed transportation pump 4 has a fault, the third electromagnetic valve 10 and the fourth electromagnetic valve 14 are opened, the first electromagnetic valve 3, the second electromagnetic valve 6 and the fifth electromagnetic valve 16 are closed, and mineral multiphase media in the second riser pipe 8 sequentially pass through the third bifurcated pipe 9, the third electromagnetic valve 10, the second mixed transportation pump 12, the spiral connecting pipe 13, the fourth electromagnetic valve 14 and the fourth bifurcated pipe 15 and finally flow to the first riser pipe 1;
when the second mixing and transporting pump 12 breaks down, the first electromagnetic valve 3 and the second electromagnetic valve 6 are opened, the third electromagnetic valve 10, the fourth electromagnetic valve 14 and the fifth electromagnetic valve 16 are closed, and the mineral multiphase medium in the second riser pipe 8 sequentially passes through the second bifurcated pipe 7, the second electromagnetic valve 6, the spiral connecting pipe 13, the first mixing and transporting pump 4, the first electromagnetic valve 3 and the first bifurcated pipe 2 and finally flows to the first riser pipe 1;
when the first mixed transportation pump 4 and the second mixed transportation pump 12 have fault working conditions simultaneously, the fifth electromagnetic valve 16 is opened, the first electromagnetic valve 3, the second electromagnetic valve 6, the third electromagnetic valve 10 and the fourth electromagnetic valve 14 are closed, and the mineral multiphase medium in the second riser pipe 8 directly flows to the first riser pipe 1 through the fifth electromagnetic valve 16.
As shown in fig. 1 and 2, the first mixing and transporting pump 4 and the second mixing and transporting pump 12 have the same specification and are circumferentially and symmetrically arranged; the first bifurcated pipe 2 and the second bifurcated pipe 7 are the same as the third bifurcated pipe 9 and the fourth bifurcated pipe 15 in specification and are symmetrically installed; the trusses 17 are distributed in a triangular mode in the horizontal direction, and the first lifting pipe 1 is used as the gravity center of the trusses in the horizontal plane direction.
As shown in fig. 3, inlets of the first mixing and transporting pump 4 and the second mixing and transporting pump 12 are both downward, pump shafts are installed along a vertical direction, volute outlets of the first mixing and transporting pump 4 and the second mixing and transporting pump 12 are both in a vertical upward structural form, the first mixing and transporting pump 4 and the second mixing and transporting pump 12 have the same structure, and taking the first mixing and transporting pump 4 as an example, a side wall a and a side wall b of a volute 41 of the first mixing and transporting pump 4 are both horizontally upward inclined. The width of an impeller 42 outlet of the impeller of the first mixing and transporting pump 4 and the minimum overflowing size of an impeller flow channel are both larger than 40% of the diameter of an impeller inlet, and front and rear cover plates of the impeller are both horizontally inclined upwards by taking the installation direction of the impeller as a reference; the outlet diffusion section structure of the volute 41 of the first 4 of the mixing and transmission pump is that the outlet direction is changed from the axial plane direction to the axial plane normal direction.
Through the brand-new design to the overall structure of the lift pump pipe system, the centrifugal pump, the pipeline and the valve are symmetrically distributed in the horizontal plane direction, the deflection of the whole vertical pipeline is reduced, through the communication design to the pump valve pipeline, the whole lift system is guaranteed to flow smoothly without blockage, and the whole lift system can still run normally when the pump unit breaks down.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (6)
1. The deep sea mining vertical lifting pump pipe system is characterized by comprising a plurality of conveying units, wherein each conveying unit comprises a lifting pipe I (1), a bifurcated pipe I (2), a solenoid valve I (3), a mixed conveying pump I (4), a bracket I (5), a solenoid valve II (6), a bifurcated pipe II (7), a lifting pipe II (8), a bifurcated pipe III (9), a solenoid valve III (10), a bracket II (11), a mixed conveying pump II (12), a spiral connecting pipe (13), a solenoid valve IV (14), a bifurcated pipe IV (15), a solenoid valve V (16) and a truss (17), one end of the lifting pipe I (1) is connected and communicated with one end of the lifting pipe II (8) through the solenoid valve V (16), and the other end of the lifting pipe I (1) is connected with the other end of the lifting pipe II (8) of the last conveying unit; the bifurcated pipe I (2) and the bifurcated pipe IV (15) are arranged on the riser I (1) and communicated, and the bifurcated pipe II (7) and the bifurcated pipe III (9) are arranged on the riser II (8) and communicated; the mixed transportation pump I (4) and the mixed transportation pump II (12) are connected in series through a spiral connecting pipe (13), two bifurcate openings are formed in the spiral connecting pipe (13) and are respectively connected with a solenoid valve II (6) and a solenoid valve IV (14), an outlet of the mixed transportation pump I (4) is connected to a bifurcate pipe I (2) through a solenoid valve I (3), and a bifurcate pipe III (9) is connected to an inlet of the mixed transportation pump II (12) through a solenoid valve III (10); the first bracket (5) and the second bracket (11) are both arranged in the truss (17), the first mixed transportation pump (4) is arranged on the first bracket (5), and the second mixed transportation pump (12) is arranged on the second bracket (11); the first lifting pipe (1), the first bifurcated pipe (2), the second bifurcated pipe (7), the second lifting pipe (8), the third bifurcated pipe (9) and the fourth bifurcated pipe (15) are all arranged in a truss (17); the other end of the second lifting pipe (8) is connected with the other end of the first lifting pipe (1) of the next conveying unit or inserted into a relay bin filled with deep-sea mineral particles, and a medium of the deep-sea mineral particles is conveyed through the first mixed conveying pump (4) or/and the second mixed conveying pump (12), wherein the medium is liquid-solid two-phase flow or liquid-solid-gas three-phase flow;
the deep sea mineral particle medium mode of different pipelines under multiple working conditions is realized by selectively controlling the actions of the first electromagnetic valve (3), the second electromagnetic valve (6), the third electromagnetic valve (10), the fourth electromagnetic valve (14) and the fifth electromagnetic valve (16).
2. The deep sea mining vertical lift pump pipe system according to claim 1, characterized in that the lift pump pipe system is vertically installed, the first mixing and transporting pump (4) and the second mixing and transporting pump (12) are power units of the conveying unit, the working mode of the conveying unit comprises a normal working condition, in the normal working condition, the first electromagnetic valve (3) and the third electromagnetic valve (10) are opened, the second electromagnetic valve (6), the fourth electromagnetic valve (14) and the fifth electromagnetic valve (16) are closed, and mineral multi-phase medium in the second lift pipe (8) sequentially passes through the third bifurcated pipe (9), the third electromagnetic valve (10), the second mixing and transporting pump (12), the spiral connecting pipe (13), the first mixing and transporting pump (4) and the first bifurcated pipe (2) and finally flows to the first lift pipe (1).
3. The deep sea mining vertical lift pump tubing system of claim 1, wherein: the operating mode of the delivery unit also includes a pump unit fault condition,
when the mixed transportation pump I (4) breaks down, the electromagnetic valve III (10) and the electromagnetic valve IV (14) are opened, the electromagnetic valve I (3), the electromagnetic valve II (6) and the electromagnetic valve V (16) are closed, and mineral multi-phase medium in the lifting pipe II (8) sequentially passes through the bifurcated pipe III (9), the electromagnetic valve III (10), the mixed transportation pump II (12), the spiral connecting pipe (13), the electromagnetic valve IV (14) and the bifurcated pipe IV (15) and finally flows to the lifting pipe I (1);
when the second mixing and transporting pump (12) breaks down, the first electromagnetic valve (3) and the second electromagnetic valve (6) are opened, the third electromagnetic valve (10), the fourth electromagnetic valve (14) and the fifth electromagnetic valve (16) are closed, and mineral multi-phase medium in the second lifting pipe (8) sequentially passes through the second bifurcated pipe (7), the second electromagnetic valve (6), the spiral connecting pipe (13), the first mixing and transporting pump (4), the first electromagnetic valve (3) and the first bifurcated pipe (2) and finally flows to the first lifting pipe (1);
when the mixed transportation pump I (4) and the mixed transportation pump II (12) simultaneously have fault working conditions, the electromagnetic valve five (16) is opened, the electromagnetic valve I (3), the electromagnetic valve II (6), the electromagnetic valve III (10) and the electromagnetic valve IV (14) are closed, and mineral multiphase media in the lifting pipe II (8) directly flow to the lifting pipe I (1) through the electromagnetic valve five (16).
4. The deep sea mining vertical lift pump pipe system of claim 1, wherein the first mixed transportation pump (4) and the second mixed transportation pump (12) are identical in specification and are installed in a circumferentially symmetrical distribution manner; the first bifurcated pipe (2), the second bifurcated pipe (7), the third bifurcated pipe (9) and the fourth bifurcated pipe (15) are the same in specification and are symmetrically installed; the trusses (17) are distributed in a triangular mode in the horizontal direction, and the first lifting pipe (1) is used as the gravity center of the trusses in the horizontal plane direction.
5. The deep sea mining vertical lift pump pipe system of claim 1, wherein inlets of the first mixing and conveying pump (4) and the second mixing and conveying pump (12) are downward, pump shafts are installed in a vertical direction, volute outlets of the first mixing and conveying pump (4) and the second mixing and conveying pump (12) are in a vertical upward structural mode, and side walls in the volutes of the first mixing and conveying pump (4) and the second mixing and conveying pump (12) are horizontally upward inclined.
6. The deep sea mining vertical lift pump pipe system according to claim 1, characterized in that the impeller (42) outlet width and the minimum flow passage size of the impeller channel of the first (4) or second (12) mixing and conveying pump are both greater than 40% of the impeller inlet diameter, and the front and rear cover plates of the impeller are both horizontally inclined upwards with respect to the installation direction of the impeller; the outlet diffusion section structure of the volute of the first mixed transmission pump (4) or the second mixed transmission pump (12) is that the outlet direction is changed from the axial surface direction to the axial surface normal direction.
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| KR100664732B1 (en) * | 2005-07-08 | 2007-01-03 | 한국지질자원연구원 | Buffer for mining mine in deep sea |
| US20110253445A1 (en) * | 2010-04-16 | 2011-10-20 | Weatherford/Lamb, Inc. | System and Method for Managing Heave Pressure from a Floating Rig |
| KR101579514B1 (en) * | 2015-07-07 | 2015-12-23 | 한국해양과학기술원 | A bypass riser pipe for mining deep sea mineral resources |
| CN110259453A (en) * | 2019-07-08 | 2019-09-20 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of floated relay station for deep-sea mining |
| CN111173515A (en) * | 2020-01-17 | 2020-05-19 | 江苏科技大学 | Deep sea mining lift system |
| CN111188618A (en) * | 2020-01-17 | 2020-05-22 | 江苏科技大学 | Deep sea mining lift pump |
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