A kind of sea-bottom shallow gas hydrates high pressure jet flow quarrying apparatusTechnical field
The utility model relates to new energy production technique fields, and in particular to a kind of sea-bottom shallow gas hydrates high pressureHydraulic jet quarrying apparatus.
Background technique
Gas hydrates (combustible ice) are the big new energy of a kind of clean and effective, storage capacity, and it is heavy to be distributed widely in deep-seaIn the permafrost of product object or land-based area, by the crystalline material for the class ice-like that natural gas and water are formed under the conditions of high pressure low temperature.GenerationThe total resources of gas hydrates is equivalent to coal known to the whole world, 2 times of oil and natural gas in boundary, can meet the mankind 1000Demand.It will be the most important energy of the 21 century mankind.
The exploitation of gas hydrates is all competitively accelerated both at home and abroad to deepen research, existing exploitation of gas hydrates canThe method of combustion ice is envisioned with: pyrolysismethod, voltage drop method and carbon dioxide replacement method etc..But due to combustible ice be prevalent in seabed orIn person's permanent freezing layer, existing exploitation of gas hydrates is limited by complicated sea bed environment, it is difficult to using conventional drilling wellMining method, this allows for solid exploitation of gas hydrates efficiency and is difficult to improve, and cannot effectively acquire natural gas hydrationObject needs to pierce underground just and can be carried out exploitation, difficulty is more especially for part in superficial layer gas hydrates belowGreatly.
For sea-bottom shallow gas hydrates, there is the prominent solids production method of scholar, so be evolved into mixed mining method orClaim slurry mining.This method comprises the concrete steps that, gas hydrates is promoted to be decomposed into gas-liquid mixed phase in situ first,Acquisition is mixed with the mixing mud of gas, liquid, solid gas hydrate, and this mixing mud is then imported operations offshore ship or production platformIt is handled, gas hydrates is promoted thoroughly to decompose, to obtain natural gas.Application No. is the China of 201510522831.XPatent propose it is a kind of exploit combustible ice by the way of heating power jet stream, but its method needs to rely on hot-fluid, and seabed combustible iceEasily in the underwater of several kms, lasting hot-fluid is provided either for technology or cost, there is biggish difficulty.
Utility model content
In view of the above-mentioned problems, the utility model provides, a kind of controllable direction, productive area is big, collecting efficiency is high, receivesCollect convenient and safe, energy saving, cost of winning is low, the exploitation of the sea-bottom shallow gas hydrates high pressure jet flow that avoids pollutionDevice.
The technical solution of the utility model is:
A kind of sea-bottom shallow gas hydrates high pressure jet flow quarrying apparatus, including sequentially connected spray head, sleeve,Nozzle body and continuous hose；The spray head is tubular structure closed at one end open at one end, and inside is used as cavity, open endInside is equipped with sliding bearing, and connects sleeve by sliding bearing, and the sleeve is two sections of staircase structural models, respectively bigger diameter endAnd miner diameter end, bigger diameter end interior bone are greater than miner diameter end interior bone, miner diameter end is contacted with sliding bearing, on the inside of bigger diameter endConnect nozzle body；The nozzle body is three sections of staircase structural models, and left and right ends are miner diameter end, and middle part is bigger diameter end, three sectionsInternal diameter it is identical, the nozzle body other end connect continuous hose.
Further, it is evenly distributed with the oblique jet hole A of multiple groups on the cylinder of the nozzle body and along its circumferencial direction,Oblique jet hole A is connected to nozzle body passage, and each group of oblique jet hole A includes 2 holes, respectively as left hole and right hole,Left hole is tilted along axial toward continuous hose direction, and right hole is not tilted toward continuous hose direction only in the axial direction, is also radially tilted, andAnd the right hole inclined direction on each group is identical.
Further, the front end of the spray head includes end face, the conical surface and wall surface, and is being equipped with multiple axial arrays aboveHole, perpendicular to spray head end face hole as axial jet hole, perpendicular to the hole of spray head wall surface and the conical surface as oblique jet hole B.
Further, a laminar flow road A, the tube wall inside of the nozzle body are offered on the inside of the tube wall of the continuous hoseRunner B and type chamber interconnected are offered, type chamber diameter is greater than runner B, and type chamber extends to the left end and the right side of oblique jet hole AEnd, and runner A and runner B connection, the outside runner B are left hole and right hole, and inside is individual inner hole.
Further, gate valve control mechanism is equipped with type is intracavitary, the gate valve control mechanism includes valve plate, sealing plate, closeSeal；The valve plate is equipped with and the oblique isodiametric circular hole of jet hole A.
The beneficial effects of the utility model are:
(1) quarrying apparatus provided by the utility model can pierce sea bed surface, and deeply the shallow region of lower section, overcomesThe disadvantage that existing sea-bottom shallow gas hydrates solids production area is small, low efficiency, the wasting of resources are more serious, realizes seabedDirection controlling in shallow layer gas hydrate recovery process, increases productive area, improves production efficiency.
(2) this quarrying apparatus relies on hydraulic pump to the exploitation of gas hydrates, and steering relies primarily on hydraulic pressure difference, saves energySource, safe and feasible reduce cost, easy to control, and using light water, do not pollute the environment, and will not produce to seabed ecologyRaw any destruction.
(3) this quarrying apparatus structure is simple, and Each part is compact, easy to implement, it can be achieved that sea-bottom shallow gas waterClose the continuous exploitation of object.
Detailed description of the invention
Fig. 1 is the external structure schematic diagram of the utility model；
Fig. 2 is the schematic diagram of internal structure of Fig. 1；
Fig. 3 is the enlarged diagram in the region M in Fig. 2.
Appended drawing reference:
The oblique jet hole B of 1-, 2- sleeve, the oblique jet hole A of 3-, 31- left hole, 32- right hole, 33- inner hole, 4- nozzle sheetBody, 5- continuous hose, 6- axial jet hole, 7- cavity, 8- spray head, 9- runner A, 10- sliding bearing, 11- circular hole, 12- type chamber,13- sealing ring, 14- sealing plate, 15- valve plate, the channel 16- runner B, 17-.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As illustrated in fig. 1 and 2, a kind of sea-bottom shallow gas hydrates high pressure jet flow quarrying apparatus, including successively connectSpray head 8, sleeve 2, nozzle body 4 and the continuous hose 5 connect；The spray head 8 is tubular structure closed at one end open at one end, interiorPortion is as cavity 7, and open end inside is equipped with sliding bearing 10, and connects sleeve 2 by sliding bearing 10, and the sleeve 2 isTwo sections of staircase structural models, respectively bigger diameter end and miner diameter end, bigger diameter end interior bone is also greater than miner diameter end interior bone, pathEnd is contacted with sliding bearing 10, and nozzle body 4 is connected on the inside of bigger diameter end；The nozzle body 4 is three sections of staircase structural models, leftRight both ends are miner diameter end, and middle part is bigger diameter end, and three sections of internal diameter is identical, and 4 other end of nozzle body connects continuous hose 5, described4 groups of oblique jet hole A3, oblique jet hole A3 and nozzle sheet are evenly distributed on the cylinder of nozzle body 4 and along its circumferencial directionThe connection of 4 channel 17 of body, each group of oblique jet hole A3 includes 2 holes, respectively as left hole 31 and right hole 32 (according to such as Fig. 2 instituteThe left and right orientation shown), left hole 31 is tilted along axial toward 5 direction of continuous hose, and right hole 32 is not only in the axial direction toward 5 direction of continuous hoseInclination, also radially tilts, and 32 inclined direction of right hole on each group is identical, and the front end of the spray head 8 includes end face, coneFace and wall surface, and in the hole for being equipped with multiple axial arrays above, perpendicular to 8 end face of spray head hole as axial jet hole 6, verticallyIn the hole of 8 wall surface of spray head and the conical surface as oblique jet hole B1, the tube wall inside of the continuous hose 5 offers a laminar flow roadThe tube wall inside of A9, the nozzle body 4 offer runner B16 and type chamber 12 interconnected, and 12 width of type chamber is greater than runnerB16, type chamber 12 extend to left end and the right end of oblique jet hole A3, and runner A9 and runner B16 connection, are on the outside of runner B16Left hole 31 and right hole 32, inside are individual inner hole 33.
As shown in figure 3, being equipped with gate valve control mechanism in type chamber 12, the gate valve control mechanism includes valve plate 15, sealingPlate 14, sealing ring 13；The valve plate 15 is equipped with the circular hole 11 wide with oblique jet hole A3.
The runner 17 connecting with interior delivery pipe is offered in the nozzle body 4, the runner 17 in nozzle body 4 is connected toMultiple apertures are arranged on spray head 8 in spray head 8, spray from the water source that the conveying of interior delivery pipe comes by runner from the aperture of spray head 8, willGas hydrates impact in sea-bottom shallow becomes graininess.
When needing to rotate, by driving valve plate 15 to be moved to connection to injection pressure in runner A9 runner B16 and type chamber 12Circulation passage 17 arrives the position of oblique jet hole A3, internal fluid can be projected from left hole 31 and right hole 32, wherein left hole 31For generating propulsive force, right hole 32 can rotate and what defeated object of natural gas washed away for generating rotary force.Product after washing awayIt is recycled by other devices and is sent to sea.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility modelLimitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripeProfessional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure aboveHold the equivalent embodiment made a little change or be modified to equivalent variations, but all without departing from technical solutions of the utility modelHold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, stillIt is within the scope of the technical solutions of the present invention.