CN108953169A - A kind of immersible pump for exploiting combustible ice for depressurizing method - Google Patents

A kind of immersible pump for exploiting combustible ice for depressurizing method Download PDF

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Publication number
CN108953169A
CN108953169A CN201810774044.8A CN201810774044A CN108953169A CN 108953169 A CN108953169 A CN 108953169A CN 201810774044 A CN201810774044 A CN 201810774044A CN 108953169 A CN108953169 A CN 108953169A
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CN
China
Prior art keywords
seal closure
rotor
intake valve
pressure sensor
sensor module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810774044.8A
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Chinese (zh)
Inventor
李峰
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201810774044.8A priority Critical patent/CN108953169A/en
Publication of CN108953169A publication Critical patent/CN108953169A/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/10Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00Rotary drilling
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0099Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/007Details, component parts, or accessories especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/406Casings; Connections of working fluid especially adapted for liquid pumps
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/136Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a kind of for depressurizing the immersible pump of method exploitation combustible ice, it include outer housing, it is mounted on the intracorporal stator winding of shell, it is mounted on the seal closure of the non-magnetic metal material of stator winding inner circumferential, it is mounted on the rotor in seal closure by bearing, and is connected to the pump housing of outer housing and seal closure lower end;Stator winding and rotor constitute a motor, are rotatably equipped with impeller in the pump housing, the first ratchet assembly is connected between impeller and the shaft of rotor;The shaft of rotor is passed down through the pump housing, and the lower end of shaft is connected with a drilling rod by the second ratchet assembly.Drilling rod can be driven to rotate when motor rotates clockwise, such immersible pump can be got into the rock stratum below immersible pump installation site by drilling rod, and the state that such immersible pump can be kept upright does not need additional fixation;When motor rotates counterclockwise, only impeller rotation keeps immersible pump in running order.

Description

A kind of immersible pump for exploiting combustible ice for depressurizing method
Technical field
The invention belongs to water pump fields, and in particular to a kind of for depressurizing the immersible pump of method exploitation combustible ice.
Background technique
Document number be CN102195387B disclose a kind of sealing structure of immersible pump, including conventional structure form by turn The liquid pump that the dragging motor that the stator of son and insertion winding is constituted is driven by its shaft, and be located at outermost anti- Protect housing;It is characterized by: above-mentioned mover and the spindle portion above-mentioned liquid pump operating of driving and outside the liquid pump, are It is surrounded by metal sealing Isolated Shield with stereogenic, also, the metal between the rotor and the stator is close Envelope Isolated Shield should locally be served as using slim non-magnet material, moreover, the metal of the slim non-magnet material production is close Envelope Isolated Shield be locally be arranged in be close to insertion winding stator inner ring circumferential location, moreover, metal sealing every Electric machine shaft gland is provided in the bottom of back taper from cover;What described metal sealing Isolated Shield itself was related to has the gap all It is to be realized by non-removable welding procedure.--- in the patent formula, since metal sealing Isolated Shield cover only exists Lower end is endless totally enclosed with electric machine shaft gland position, so the immersible pump must keep state ability of the motor in upper liquid pump under It can guarantee its sealing effect, therefore generally requiring could be used immersible pump fixing-stable position using fixing piece when in use, when This kind of immersible pump (for example in the combustible ice exploitation in seabed, depth is more than 300 meters), this kind when the biggish seabed of depth uses The fixation of immersible pump just has larger difficulty, and is difficult to reach the effect for keeping sealing performance for a long time using common immersible pump Fruit.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the deficienciess of the prior art, provide one kind can guarantee it is close Envelope effect and the immersible pump that combustible ice is exploited for depressurizing method being fixed conveniently.
Purpose to realize the present invention, is achieved using following technical scheme: one kind is for depressurizing method exploitation combustible ice Immersible pump, include outer housing, be mounted on the intracorporal stator winding of shell, be mounted on the non-magnetic metal of stator winding inner circumferential The seal closure of material is mounted on the rotor in seal closure by bearing, and is connected to outer housing and seal closure lower end The pump housing;The stator winding and rotor constitute a motor, and the rotor lower end passes through seal closure and and seal closure Pass through sealing bearing connection between lower end;The seal closure lower end is in infundibulate low between the senior middle school of periphery;
It is rotatably equipped with impeller in the pump housing, the first ratchet assembly is connected between the impeller and the shaft of rotor;
The shaft of the rotor is passed down through the pump housing, and the lower end of shaft is connected with one by the second ratchet assembly Drilling rod;
The rotor drives drilling rod to rotate clockwise by the second ratchet assembly, and the rotor passes through the first ratchet group Part driving impeller rotates backward.
Air accumulator, solenoid valve and air pump, institute are installed as a preferred solution: being located above seal closure in the outer housing The upper end for stating seal closure is welded with the intake valve for the metal material that one is vertically arranged;The air accumulator, solenoid valve, air pump and into Air valve is sequentially connected;The solenoid valve and air pump are electrically connected with the controller for being mounted on outer housing inner top respectively;
A horizontal seat board is formed in the intake valve, seat board intermediary form has air inlet, the seat board lower end It is equipped with and seals the valve block to offset with seat board, the first spring is installed between the valve block lower end and intake valve lower end;It is described It is located above the seat board in intake valve and an annular heater is installed;It is located at heater and valve block in the intake valve Top, which is provided with, is wound into columned low-melting-point metal silk;It is located above low-melting-point metal silk in the intake valve and is equipped with one To the compression valve block for being compacted the low-melting-point metal silk of fusing downwards, pacify between the compression valve block upper end and intake valve upper end Equipped with a second spring;
The heater is electrically connected with controller.
As a preferred solution: the outer housing outer wall is equipped with first pressure sensor module,InstituteState installation in seal closure There is second pressure sensor module, the first pressure sensor module and second pressure sensor module are logical with controller respectively Conducting wire is crossed to electrically connect or electrically connect by radio;When the pressure value that the first pressure sensor module detects is greater than the The pressure value that two pressure sensor modules detect, controller control solenoid valve and air pump start work simultaneously, until second pressure After the pressure value that sensor module detects is greater than the pressure value that first pressure sensor module detects, controller control heating The fusing of low-melting-point metal silk blocks intake valve thoroughly by device fever.
As a preferred solution: the low-melting-point metal silk is scolding tin.
Compared with prior art, the beneficial effects of the present invention are: the motor of immersible pump has there are two function in the present invention, Drilling rod can be driven to rotate when motor rotates clockwise, such immersible pump can be got into below immersible pump installation site by drilling rod In rock stratum, the state that such immersible pump can be kept upright does not need additional fixation;It is only driven when motor rotates counterclockwise Wheel rotation keeps immersible pump in running order, and due to being provided with the second ratchet assembly, drilling rod will not be with wheel rotation.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of air inlet valve portion.
1, stator winding;11, outer housing;
2, rotor;21, seal closure;
3, the pump housing;31, go out liquid interface;32, impeller;321, the first ratchet assembly;
4, drilling rod;41, the second ratchet assembly;
5, air accumulator;
6, air pump;
7, intake valve;70, seat board;71, valve block;711, the first spring;72, heater;73, low-melting-point metal silk;74, it compresses Valve block;741, second spring;
8, solenoid valve;
9, controller.
Specific embodiment
Embodiment 1
According to Fig. 1, a kind of for depressurizing the immersible pump of method exploitation combustible ice described in the present embodiment, it include outer housing 11, it is mounted on the intracorporal stator winding 1 of shell, is mounted on the seal closure 21 of the non-magnetic metal material of stator winding inner circumferential, is led to The rotor 2 that bearing is mounted in seal closure is crossed, and is connected to the pump housing 3 of outer housing and seal closure lower end;The stator Winding and rotor constitute a motor, and the rotor lower end passes through close across seal closure and seal closure lower end Seal bearing connection;The seal closure lower end is in infundibulate low between the senior middle school of periphery.The pump housing lower part is equipped with water inlet, the pump Body side upper end is connected with out liquid interface 31, and liquid interface is for connecting liquid-transport pipe-line out.
It is rotatably equipped with impeller 32 in the pump housing, the first ratchet is connected between the impeller and the shaft of rotor Component 321.
The shaft of the rotor is passed down through the pump housing, and the lower end of shaft is connected by the second ratchet assembly 41 There is a drilling rod 4.
The rotor drives drilling rod to rotate clockwise by the second ratchet assembly, and the rotor passes through the first spine Wheel assembly driving impeller rotates backward.
There are two functions for the motor tool of immersible pump in the present invention, drilling rod can be driven to rotate when motor rotates clockwise, this Sample immersible pump can get into the rock stratum below immersible pump installation site (rock stratum of combustible ice exploitation bottom) by drilling rod, in this way The state that immersible pump can be kept upright does not need additional fixation;When motor rotates counterclockwise, only impeller rotation makes Immersible pump is in running order, and due to being provided with the second ratchet assembly, drilling rod will not be with wheel rotation, it is ensured that the normal work of impeller Make.
Embodiment 2
Referring to figs. 1 and 2, the present embodiment makes following improvement on the basis of embodiment 1: being located in the outer housing close Air accumulator 5, solenoid valve 8 and air pump 6 are installed, the upper end of the seal closure is welded with the gold being vertically arranged above sealing cover Belong to the intake valve 7 of material;The air accumulator, solenoid valve, air pump and intake valve are sequentially connected;The solenoid valve and air pump respectively with The controller 9 for being mounted on outer housing inner top electrically connects.
A horizontal seat board 70 is formed in the intake valve 7, seat board intermediary form has air inlet, the valve seat Plate lower end, which is equipped with, seals the valve block 71 to offset with seat board, is equipped with the first bullet between the valve block lower end and intake valve lower end Spring 711;It is located above the seat board in the intake valve and an annular heater 72 is installed;It is located in the intake valve It is provided with above heater and valve block and is wound into columned low-melting-point metal silk 73;It is located at low-melting-point metal in the intake valve Silk top be equipped with a compression valve block 74 the low-melting-point metal silk of fusing to be compacted downwards, the compressions valve block upper end and One second spring 741 is installed between intake valve upper end.
The heater is electrically connected with controller.The heater is electromagnetic heater.
The outer housing outer wall is equipped with first pressure sensor module,InstituteIt states and second pressure sensing is installed in seal closure Device module, the first pressure sensor module and second pressure sensor module electrically connected respectively with controller by conducting wire or Person is electrically connected by radio;When the pressure value that the first pressure sensor module detects is greater than second pressure sensor die The pressure value that block detects, controller control solenoid valve and air pump start work simultaneously, until second pressure sensor module detects To pressure value be greater than the pressure value that detects of first pressure sensor module after, controller controls heater fever for low melting point Wire fusing blocks intake valve thoroughly.
The controller can be SCM system, and controller is accompanied with battery and powers for it.The controller is furnished with Reception of wireless signals module can start work by remote control control controller.
The low-melting-point metal silk is scolding tin.The valve block is preferably heat resistant rubber, in melts soldering tin and will be on seat board Air inlet it is completely enclosed during, it is ensured that the sealing performance between valve block and seat board.More preferably in valve block upper surface pair The position of air inlet is answered to connect one layer of heat insulation layer.
Since the working depth of immersible pump is larger, if being first filled with high pressure gas in seal closure before immersible pump installation, The sealing performance requirement for then sealing position of bearings is very high, is otherwise difficult to avoid that high pressure gas leakage, once high pressure gas is let out Leakage, and is difficult to ensure the air pressure in seal closure, and each immersible pump due to working environment it is different, the pressure value in locating water is not Together, it is just right to be also difficult to institute's inflatable body pressure for inflation in advance.Therefore it is first pre- in the outer housing of immersible pump in the present embodiment Set the air accumulator filled with high pressure gas or liquefied gas, to immersible pump dive to operating position during by the gas in air accumulator Body is gradually filled in seal closure.In addition, making air inlet using heater heating scolding tin to guarantee being absolutely sealed for seal closure top Valve is completely enclosed, avoids leaking for gas molecule in seal closure.
In addition, when pressure of the air pump in air accumulator is reduced to suitable with sealing internal mask pressure, it can will be in air accumulator Gas as much as possible continues to be filled in seal closure, the amount of gas storage needed for opposite reduction air accumulator.Two-stage may be selected in the air pump Or the plunger pump of three-level pressurization.
Embodiment 3
Referring to figs. 1 and 2, the present embodiment makes following improvement on the basis of embodiment 1: being located in the outer housing close Air accumulator 5 and solenoid valve 8 are installed, the upper end of the seal closure is welded with the metal material being vertically arranged above sealing cover Intake valve 7;The air accumulator, solenoid valve and intake valve are sequentially connected;The solenoid valve and it is mounted on outer housing inner top Controller 9 electrically connects.
A horizontal seat board 70 is formed in the intake valve 7, seat board intermediary form has air inlet, the valve seat Plate lower end, which is equipped with, seals the valve block 71 to offset with seat board, is equipped with the first bullet between the valve block lower end and intake valve lower end Spring 711;It is located above the seat board in the intake valve and an annular heater 72 is installed;It is located in the intake valve It is provided with above heater and valve block and is wound into columned low-melting-point metal silk 73;It is located at low-melting-point metal in the intake valve Silk top be equipped with a compression valve block 74 the low-melting-point metal silk of fusing to be compacted downwards, the compressions valve block upper end and One second spring 741 is installed between intake valve upper end.
The heater is electrically connected with controller.The heater is electromagnetic heater.
The outer housing outer wall is equipped with first pressure sensor module,InstituteIt states and second pressure sensing is installed in seal closure Device module, the first pressure sensor module and second pressure sensor module electrically connected respectively with controller by conducting wire or Person is electrically connected by radio;When the pressure value that the first pressure sensor module detects is greater than second pressure sensor die The pressure value that block detects, controller controls solenoid valve and opens, until the pressure value that second pressure sensor module detects is greater than After the pressure value that first pressure sensor module detects, controller control heater fever by low-melting-point metal silk fusing make into Air valve is thoroughly blocked.
Compared to embodiment 2, this embodiment reduces air pumps, and component is few, manufacture convenient for assembly, but gas storage needed for air accumulator Amount is slightly more compared to embodiment 2.

Claims (1)

1. a kind of immersible pump that combustible ice is exploited for depressurizing method, includes outer housing, is mounted on the intracorporal stator winding of shell, It is mounted on the seal closure of the non-magnetic metal material of stator winding inner circumferential, the rotor in seal closure is mounted on by bearing, And it is connected to the pump housing of outer housing and seal closure lower end;The stator winding and rotor constitute a motor, the electricity Machine rotor lower end is connect across seal closure and by sealing bearing seal closure lower end;The seal closure lower end is high in periphery Intermediate low infundibulate;
It is characterized by:
It is rotatably equipped with impeller in the pump housing, the first ratchet assembly is connected between the impeller and the shaft of rotor;
The shaft of the rotor is passed down through the pump housing, and the lower end of shaft is connected with one by the second ratchet assembly Drilling rod;
The rotor drives drilling rod to rotate clockwise by the second ratchet assembly, and the rotor passes through the first ratchet group Part driving impeller rotates backward;
It is located above seal closure in the outer housing and air accumulator and solenoid valve is installed, the upper end of the seal closure is welded with one The intake valve of a metal material being vertically arranged;The air accumulator, solenoid valve and intake valve are sequentially connected;The solenoid valve and peace Controller mounted in outer housing inner top electrically connects;
A horizontal seat board is formed in the intake valve, seat board intermediary form has air inlet, the seat board lower end It is equipped with and seals the valve block to offset with seat board, the first spring is installed between the valve block lower end and intake valve lower end;It is described It is located above the seat board in intake valve and an annular heater is installed;It is located at heater and valve block in the intake valve Top, which is provided with, is wound into columned low-melting-point metal silk;It is located above low-melting-point metal silk in the intake valve and is equipped with one To the compression valve block for being compacted the low-melting-point metal silk of fusing downwards, pacify between the compression valve block upper end and intake valve upper end Equipped with a second spring;
The heater is electrically connected with controller;
The heater is electromagnetic heater;
The outer housing outer wall is equipped with first pressure sensor module,InstituteIt states and second pressure sensor die is installed in seal closure Block, the first pressure sensor module and second pressure sensor module are electrically connected or are led to by conducting wire with controller respectively Radio is crossed to electrically connect;When the pressure value that the first pressure sensor module detects is examined greater than second pressure sensor module The pressure value measured, controller control solenoid valve and open, until the pressure value that second pressure sensor module detects is greater than first After the pressure value that pressure sensor module detects, the fusing of low-melting-point metal silk is made intake valve by controller control heater fever Thoroughly blocked.
CN201810774044.8A 2016-12-22 2016-12-22 A kind of immersible pump for exploiting combustible ice for depressurizing method Withdrawn CN108953169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810774044.8A CN108953169A (en) 2016-12-22 2016-12-22 A kind of immersible pump for exploiting combustible ice for depressurizing method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810774044.8A CN108953169A (en) 2016-12-22 2016-12-22 A kind of immersible pump for exploiting combustible ice for depressurizing method
CN201611194539.0A CN106704209B (en) 2016-12-22 2016-12-22 A kind of immersible pump for depressurizing method exploitation combustible ice

Related Parent Applications (1)

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CN201611194539.0A Division CN106704209B (en) 2016-12-22 2016-12-22 A kind of immersible pump for depressurizing method exploitation combustible ice

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CN108953169A true CN108953169A (en) 2018-12-07

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CN201810774045.2A Withdrawn CN108953170A (en) 2016-12-22 2016-12-22 A kind of immersible pump for exploiting combustible ice for depressurizing method
CN201611194539.0A Active CN106704209B (en) 2016-12-22 2016-12-22 A kind of immersible pump for depressurizing method exploitation combustible ice

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CN201611194539.0A Active CN106704209B (en) 2016-12-22 2016-12-22 A kind of immersible pump for depressurizing method exploitation combustible ice

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4949401A (en) * 1972-09-14 1974-05-14
JPS5391401A (en) * 1977-01-24 1978-08-11 Shibaura Eng Works Ltd Underwater pump
US4123858A (en) * 1971-07-06 1978-11-07 Batchelder George W Versatile submersible device for dredging or other underwater functions
SU987188A1 (en) * 1981-07-06 1983-01-07 Мордовский государственный университет им.Н.П.Огарева Auger pump for pumping viscous media
JPH0339527A (en) * 1989-07-05 1991-02-20 Toa Harbor Works Co Ltd Dredging device
CN1393605A (en) * 2001-06-29 2003-01-29 东洋电机工业所股份有限公司 Remover for sand and soil
CN105134616A (en) * 2015-07-22 2015-12-09 上海要要玖消防科技有限公司 Air pressure protection type immersible pump
CN105351210A (en) * 2015-12-15 2016-02-24 河北潜达特种泵业有限公司 Feeding packing auger type submersible mud pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4426367B2 (en) * 2004-04-30 2010-03-03 三井造船株式会社 Gas hydrate marine transportation method and gas hydrate marine transportation ship
WO2007072172A1 (en) * 2005-12-20 2007-06-28 Schlumberger Technology B.V. Method and system for development of hydrocarbon bearing formations including depressurization of gas hydrates
CN1944950A (en) * 2006-08-09 2007-04-11 中国石油大学(华东) Method for recovering sea bottom hydrate by underwell gas and water separation and back injection
CN102788026B (en) * 2011-05-16 2015-07-08 梁嘉麟 Anti-leaking sealing method of full-sealing liquid pump of with detachable motor stator during operation
CN203604218U (en) * 2013-11-22 2014-05-21 天津市华海通钢铁有限公司 Immersible pump

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123858A (en) * 1971-07-06 1978-11-07 Batchelder George W Versatile submersible device for dredging or other underwater functions
JPS4949401A (en) * 1972-09-14 1974-05-14
JPS5391401A (en) * 1977-01-24 1978-08-11 Shibaura Eng Works Ltd Underwater pump
SU987188A1 (en) * 1981-07-06 1983-01-07 Мордовский государственный университет им.Н.П.Огарева Auger pump for pumping viscous media
JPH0339527A (en) * 1989-07-05 1991-02-20 Toa Harbor Works Co Ltd Dredging device
CN1393605A (en) * 2001-06-29 2003-01-29 东洋电机工业所股份有限公司 Remover for sand and soil
CN105134616A (en) * 2015-07-22 2015-12-09 上海要要玖消防科技有限公司 Air pressure protection type immersible pump
CN105351210A (en) * 2015-12-15 2016-02-24 河北潜达特种泵业有限公司 Feeding packing auger type submersible mud pump

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Publication number Publication date
CN108953170A (en) 2018-12-07
CN106704209A (en) 2017-05-24
CN106704209B (en) 2018-09-04

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Application publication date: 20181207