CN113401559B - Underground cave depot deposit efflux disturbance device - Google Patents
Underground cave depot deposit efflux disturbance device Download PDFInfo
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- CN113401559B CN113401559B CN202110769545.9A CN202110769545A CN113401559B CN 113401559 B CN113401559 B CN 113401559B CN 202110769545 A CN202110769545 A CN 202110769545A CN 113401559 B CN113401559 B CN 113401559B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G5/00—Storing fluids in natural or artificial cavities or chambers in the earth
Abstract
The invention discloses a sedimentary jet flow disturbance device for an underground cave depot, which comprises a cave body, wherein the bottom of the cave body is provided with a movable jet flow pipeline, and a plurality of vertically arranged first spray heads and a plurality of horizontally arranged second spray heads are uniformly distributed on the jet flow pipeline; the output of first shower nozzle disposes external nozzle, and external nozzle is equipped with the nozzle chamber that link up from top to bottom, disposes rotary nozzle in the nozzle chamber, and rotary nozzle's inside disposes fluid passage, and fluid passage disposes the multiunit discharge hole on rotary nozzle's surface, and the input in nozzle chamber links to each other with the output of shower nozzle, and the output in nozzle chamber and rotary nozzle's surface roll cooperation. The invention can adjust the jet flow speed according to the oil sludge deposition condition, impact and scatter sludge, prevent oil sludge from caking and depositing, reduce crude oil loss and ensure the oil storage space of the cavity body; oil sludge is swept through the first spray head and the second spray head, so that the oil product flow is promoted, and the oil product blending is realized.
Description
Technical Field
The invention belongs to the technical field of petrochemical industry, and particularly relates to a deposition jet flow disturbance device for an underground cave depot.
Background
With the rapid development of economy, the demand of oil is increasing day by day, and the strategic reserve of oil has very important significance. The underground water seal cave depot has been developed greatly in recent decades due to the advantages of small occupied area, large storage capacity, strong emergency capacity, low cost, high safety performance and the like, and is an increasingly important petroleum storage mode at present.
The crude oil is a mixture composed of colloidal solution, solid hydrocarbon, asphaltene, a particle silt disperse phase and the like, and the underground crude oil cavern inevitably has deposition problems after long-term operation. The invention discloses a device for cleaning oil sludge in an underground water seal cave depot, which comprises a plurality of rows of spray heads arranged at the bottom of the underground water seal cave depot, wherein each row of spray heads is provided with a plurality of rows, the spray heads are in the same direction, the spray heads are connected with a transmission pump, an oil inlet of the transmission pump is arranged at the upper part of the underground water seal cave depot and is positioned below the liquid level of crude oil, and the oil sludge sediment at the bottom of the underground water seal cave depot is blown by a fluid injection method, so that the oil products in the underground water seal cave depot are subjected to integral circulation, the oil sludge sediment is mixed with the oil products at the upper layer again, and then the oil sludge sediment is conveyed out along with the oil products by an oil pump, thereby eliminating or reducing the oil sludge sediment in the underground water seal cave depot.
The spray head plays a crucial role in jet operation. Chinese patent No. CN 104209200B discloses a nozzle with adjustable spray area, which comprises a nozzle body, at least two baffle plates, an elastic member for applying external force to the baffle plates, an outer adjusting member and an inner adjusting member sleeved on the nozzle body. The ejection area is adjusted to a greater extent by rotating the flaps inwardly or outwardly.
Disclosure of Invention
The invention aims to provide a safe and energy-saving underground cavern sediment jet disturbance device which has small crude oil loss, does not damage the oil storage capacity of the cavern and can promote oil product blending, and the flow velocity and the jet impact force of a fluid jet can be adjusted according to the oil sludge sediment condition.
The technical scheme adopted by the invention for realizing the purpose is as follows:
the underground cave depot sedimentation jet flow disturbance device is characterized by comprising a cave body, wherein the bottom of the cave body is provided with a movable jet flow pipeline, and a plurality of vertically arranged first spray heads and a plurality of horizontally arranged second spray heads are uniformly distributed on the jet flow pipeline;
the output of first shower nozzle disposes external nozzle, and external nozzle is equipped with the nozzle chamber that link up from top to bottom, disposes rotary nozzle in the nozzle chamber, and rotary nozzle's inside disposes fluid passage, and fluid passage disposes the multiunit discharge hole on rotary nozzle's surface, and the input in nozzle chamber links to each other with the output of shower nozzle, and the output in nozzle chamber and rotary nozzle's surface roll cooperation.
The jet operation was as follows: the immersed pump lifts oil at the bottom of the hole body to the ground, the oil is pressurized by the booster centrifugal pump and then injected into the jet pipeline, part of the oil in the jet pipeline enters the first spray head and is vertically sprayed out from the inside of the rotary nozzle through the group of discharge holes to impact oil sludge deposited at the bottom of the hole warehouse, and part of the oil in the jet pipeline enters the second spray head and is horizontally sprayed out from an outlet of the second spray head to drive the oil at the bottom of the hole body to flow.
By adopting the technical scheme, the oil inside the underground cave depot is lifted upwards to the ground through the immersed pump, and the oil is pressurized by the booster centrifugal pump to have certain pressure and speed, the pressurized oil has certain speed and pressure, is conveyed through the pipeline and is injected into the jet pipeline at the bottom of the cave body again, and is finally sprayed out through the first spray head or the second spray head, so that the oil sludge at the bottom of the cave body can be effectively impacted, scattered and blown, sludge is eliminated, deposition is prevented, the loss of crude oil quantity is small, and the oil storage space of the underground cave depot is not influenced. Through the jet flow disturbance device, the same oil product is adopted for impact jet flow, no new medium is introduced, the oil product separation procedure can be omitted, the labor intensity of the whole jet flow operation is low, and the requirements of energy conservation and consumption reduction are met. Through immersed pump and first shower nozzle and second shower nozzle, make the oil at the hole body and efflux pipeline between the circulation flow, realize the oil mediation, can effectively prevent the oil layering, improve the oil quality.
The jet pipeline is movable, so that the circulating jet operation can be carried out according to the sludge deposition condition at the bottom of the hole body, and jet dead angles are prevented. The jet pipeline does not cover the bottom of the whole hole body, and the hole body is subjected to split jet operation in different areas. Oil in the jet pipeline is sprayed out by the first spray heads or the second spray heads in a small number in a short distance, so that the jet flow velocity loss is favorably avoided, the jet impact strength is ensured, and the capacity of crushing oil sludge is improved.
The first spray head is vertically arranged, and a rotary spray nozzle of the first spray head can spray oil products towards the vertical direction; the second spray head is horizontally arranged, and the rotary spray nozzles of the second spray head can spray oil products towards the same horizontal direction. The vertical jet flow operation gradually crushes the oil sludge deposited at the bottom of the cave depot from a whole hardened state, so that the oil sludge has better fluidity, and the horizontal jet flow operation enables the oil sludge with fluidity to flow to the immersed pump. Therefore, the jet flow has the functions of smashing and purging for the oil sludge deposited at the bottom of the cave depot, and simultaneously drives the oil product cyclone at the bottom of the cave depot to promote the oil product inside the whole cave depot to circularly flow, thereby playing the roles of removing the oil sludge and blending the oil product. The first spray head and the second spray head are matched from different angles to promote the flow of oil products, and the requirements of energy conservation and consumption reduction are met.
First shower nozzle and external nozzle cooperation are equipped with rotatory nozzle in the external nozzle, and when rotatory nozzle used the connecting rod as the rotation of axes, the discharge hole of the different on the rotatory nozzle surface exposed at the output in nozzle chamber. Thus, by selecting a suitable discharge orifice to cooperate with the output end of the nozzle chamber, oil within the nozzle chamber will enter the fluid passageway from the remaining discharge orifices in the rotating nozzle face and will eventually exit the outboard nozzle via the selected discharge orifice.
The orifices of the multiple groups of orifices of the rotating nozzle face are of different sizes, and further, the multiple groups of orifices may also have different shapes, for example: the discharge orifice may consist of one or more spray orifices, one or more spray slits, or a combination of spray orifices and spray slits. The hole diameter and the shape of the discharge hole are different, the flow velocity of the oil product sprayed is different, the jet flow radiation area is different, and the jet flow intensity is different.
Further, first shower nozzle can cooperate with the sensor, and the connecting rod of rotatory nozzle cooperates with step motor. The sensor is used for sensing the deposition condition of sludge at the bottom of the hole body, the stepping motor is started to drive the rotary nozzle to rotate according to different sludge deposition states, and the discharge hole with the proper aperture or shape is selected to be matched with the output end of the nozzle cavity. Therefore, the jet intensity in a local area can be adjusted as required, a larger discharge hole is selected in an area with a thinner oil sludge deposit layer for jet operation, the jet area is large, the jet impact strength is weak, excessive impact on the inner wall of a cave depot can be avoided, abrasion is prevented, the flow rate of oil sprayed by an external nozzle is low, and the oil gas loss in the jet operation can be reduced; and a small discharge hole is selected in the thick area of the oil sludge deposit layer for jet flow operation, so that the jet flow oil is concentrated, the jet flow impact strength is high, and sludge crushing is facilitated. The jet intensity of the oil product can be improved by adjusting the discharge hole of the rotary nozzle, the jet range is adjusted, the additional increase of the oil product in the circulating pipeline is not needed, and the requirements of energy conservation and consumption reduction are met.
Furthermore, the fluid channel inside the rotating nozzle is streamline, so that the oil flow is guided, the direct impact of the oil on the inner wall of the fluid channel is reduced or avoided, the energy loss is reduced, and the flow velocity of the oil is ensured.
According to one embodiment of the invention, two connecting rods protruding transversely are symmetrically arranged on the outer surface of the rotary nozzle, the two connecting rods are embedded into the inner wall of the external nozzle, and the rotary nozzle can rotate by taking the connecting rods as an axis; the plurality of discharge holes are uniformly distributed on the surface of the rotary nozzle, and the centers of the respective discharge holes are equidistant from any one of the connecting rods.
In this manner, the rotating nozzle may rotate within the nozzle cavity in the direction of flow of the oil. The connecting line of the two connecting rods is used as a central shaft, the surface of the rotary nozzle can be uniformly divided into a plurality of drainage subareas by outward radiation, and the drainage hole is formed in the center of each drainage subarea.
According to one embodiment of the invention, the output end of the external nozzle is provided with an annular connector, the inner surface of the connector is provided with a slot, a plurality of telescopic insertion pieces are arranged in the slot, and the insertion pieces can move in the slot along a direction close to or far away from the center of the outlet of the connector. Therefore, the size of the nozzle outlet can be changed by adjusting the position of the inserting piece, and the oil product injection range can be adjusted. The connector can be welded or integrally formed with the outlet of the spray head to prevent falling off. The embedded type inserting piece is arranged, the structure is simple, the occupied space is small, the size of the whole spray head is small, and the application range is wide.
According to one embodiment of the invention, the jet pipeline comprises a jet manifold and a plurality of parallel jet branch pipes, and the plurality of jet branch pipes are communicated with the jet manifold; so, the efflux collection pipe links to each other with the output of pressure boost centrifugal pump, and the efflux is in charge of and is cooperateed with the efflux collection pipe, and the oil after the pressure boost gets into different efflux and is in charge of under the reposition of redundant personnel effect of efflux collection pipe, guarantees that the flow and the velocity of flow of each efflux intraductal oil are balanced. Preferably, the jet manifold and the jet branch pipes are arranged vertically, and the plurality of jet branch pipes are arranged on the same side of the jet manifold. From this, the inside oil syntropy of efflux header flows, can avoid the loss of capability, guarantees the efflux effect, and on the other hand still is convenient for the efflux pipeline and is gone round the removal in hole body bottom. Preferably, the diameter of the jet manifold is greater than the diameter of the jet manifold and greater than the sum of the diameters of the plurality of jet manifolds. Therefore, the oil in the jet flow distribution pipe is accelerated.
A plurality of efflux is in charge of and is located parallel arrangement at the same height department of hole body bottom, makes a plurality of efflux tubulations evenly distributed, and the oil in the efflux pipe passes through even injection in first shower nozzle or the second shower nozzle to the bottom in underground cave storehouse, prevents the fatlute caking deposit. The parallel and dispersed setting of a plurality of efflux branch pipes can guarantee first shower nozzle and the even operation of second shower nozzle, guarantees the efflux effect.
Furthermore, the plurality of first spray heads and the plurality of second spray heads are all arranged on the jet flow branch pipe, the plurality of first spray heads are uniformly distributed and vertically arranged downwards, and the plurality of second spray heads are uniformly distributed and oriented in the same direction; the rotary nozzle of first shower nozzle sets up perpendicularly, and the rotary nozzle level of second shower nozzle sets up, carries out the efflux operation to the fatlute of deposit from two directions, guarantees the mobility of cave storehouse bottom oil, and effective fatlute prevents deposit and caking. The second spray head is horizontally arranged to promote the circulation flow of oil products between the jet pipeline and the underground cave depot. Therefore, the deposited oil sludge is subjected to jet flow operation from two directions, the fluidity of oil products at the bottom of the cave depot is ensured, and the deposited oil sludge is effectively prevented from being deposited and agglomerated.
Furthermore, the jet flow branch pipe positioned on the outer layer is also provided with a plurality of third spray heads, and the third spray heads are obliquely arranged outwards. Generally, the third nozzle may be disposed obliquely downward. So, when the jet pipeline removed suitable position, can carry out the efflux through the third shower nozzle to the bottom of hole body lateral wall and strike, promote the oil to flow to hole storehouse center, prevent fatlute adhesion in the bottom of lateral wall, improve the efflux scope, avoid the efflux dead angle. On the other hand, the included angle between the injection direction of the third nozzle and the flow direction of the oil inside the jet flow branch pipe is small, so that the excessive high flow speed loss of the jet flow is avoided, and the energy consumption can be reduced.
According to one embodiment of the invention, the bottom of the hole body is provided with a fixed frame, the fixed frame is provided with a sliding rod, the bottom of the jet pipeline is provided with a sliding block, and the sliding block can move back and forth along the sliding rod. The stability of efflux pipeline can be strengthened to the mount, makes it be in steady operation all the time. The jet pipeline moves back and forth along the sliding rod, and jet operation can be circularly unfolded in different areas at the bottom of the hole body, so that jet dead angles are prevented. Specifically, the slide bar can extend along the length direction of the bottom of the hole body, and the jet pipeline can slide back and forth at the bottom of the hole body along the slide bar through the slide block. Correspondingly, the jet pipeline still accomodates the carousel with extension pipe and pipeline and cooperatees, prevents that the jet pipeline from the pipeline winding appearing at the removal in-process.
According to an embodiment of the invention, the holder is provided with a vertically arranged grating plate. Therefore, the bottom area of the hole body can be divided through the grating plates, and the part with larger volume is intercepted by the grating plates in the sludge scattered by the first spray head in an impact manner, so that the first spray head can conveniently perform secondary impact on the sludge, and the sludge can be further crushed until the sludge can pass through the grating. In addition, the oil in the jet flow subarea forms backflow in a small range under the impact action of the second spray head and the interception action of the grid plate, and oil blending is facilitated to be promoted.
According to one embodiment of the invention, the hole body is provided with an air inlet and an air outlet, and the air outlet is connected with an external oil gas recovery device. Therefore, inert gas can be injected into the hole body through the gas inlet in the operation process, and the safety explosion-proof requirement in the jet flow operation process is guaranteed. The gas outlet is connected with the oil gas recovery equipment, so that resource treatment can be realized. The general oil gas recovery equipment is arranged on the ground and can cooperate with impurity separation equipment, oily sewage treatment equipment and the like, so that the high efficiency and environmental protection of the whole operation process are realized.
According to an embodiment of the present invention, a gas concentration detection device is disposed inside the hole body. Underground cave depot is located the underground, and the efflux operation is in totally closed state, and oil gas concentration gathering sets up gas concentration check out test set and can the inside oil gas concentration situation in real time detection hole body to prevent the potential safety hazard.
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes fluid jet operation to impact, scatter and purge the oil sludge at the bottom of the underground cave depot, and the jet pipeline carries and the first nozzle and the second nozzle move circularly at the bottom of the cave body, so that the jet range is wide enough and no jet dead angle exists; the immersed pump is matched with the booster centrifugal pump, so that the jet oil product has enough impact strength and impact speed, sludge accumulated at the bottom of the hole body can be broken, and the jet effect is excellent; the first spray head, the second spray head and the third spray head which are arranged at different angles are matched for use, so that the flow of oil sludge at the bottom of the hole body is enhanced, and the flowing oil product circularly flows, so that the deposition and the adhesion of the oil product can be effectively prevented; the invention adopts the same oil product to carry out impact jet, does not introduce a new medium, and can promote the oil product to be blended; the first spray head is provided with the rotary nozzle, so that the jet angle and the jet intensity of an oil product can be adjusted according to the oil sludge deposition condition, the effect is good, and the energy conservation and the environmental protection are realized. In addition, the jet flow disturbance device is simple in structure, convenient to lay and high in applicability. Therefore, the invention can solve the problem of sludge deposition in the long-term operation process of the underground water-sealed cave depot.
Drawings
FIG. 1 is a schematic cross-sectional view of a device for disturbing a sediment jet in an underground cavern in accordance with an embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a jet pipeline of the underground cavern sediment jet disturbance device shown in FIG. 1;
FIG. 3 is a schematic perspective view of a first spray head of the sediment jet perturbation device for the underground cavern shown in FIG. 1;
FIG. 4 is a cross-sectional view of the first showerhead shown in FIG. 3 taken along the plane of line C-C;
FIG. 5 is a schematic perspective view of a first spray head of the sediment jet perturbation device for the underground cavern in embodiment 2 of the invention;
FIG. 6 is a cross-sectional view of the first showerhead shown in FIG. 5 taken along the plane of line D-D;
FIG. 7 is an enlarged view of a portion E of FIG. 6;
reference numerals: a hole body 10; an immersed pump 11; a fixed frame 12; a circulation line 20; a suction duct 21; an output duct 22; a filter 31; a booster centrifugal pump 32; a fluidic circuit 40; a jet branch pipe 41; a jet manifold 42; an intake pipe 421; a shunt 422; a jet inlet 43; an extension tube 423; a receiving carousel 424; a first shower head 51; a second spray head 52; the third shower head 53; an external nozzle 60; a nozzle chamber 61; a rotary nozzle 62; a fluid passage 63; a discharge hole 64; a connecting rod 65; a connector 70; a slot 71; an insert 72; a fixed plate 721; a tentacle 722; a first spring 73; a second spring 74; a slide bar 81; a slider 82; a transmission gear 83.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the following detailed description and the accompanying drawings:
example 1:
fig. 1 to 4 schematically show an underground cavern sediment jet flow disturbance device according to an embodiment of the invention, which utilizes jet flow impact and forms automatic circulation to prevent sludge at the bottom of the cavern from depositing in a fully closed running state of the underground cavern.
As shown, the apparatus includes a hole 10, an immersed pump 11, a circulation line 20, a filter 31, a booster centrifugal pump 32, and a jet line 40. The cave body 10 is arranged underground, is an underground water-sealed cave depot and is positioned below a surface line A-A and an underground water line B-B. The immersed pump 11 and the jet pipeline 40 are arranged inside the hole body 10, and the booster centrifugal pump 32 is arranged on the ground outside the hole body 10. The oil in the hole 10 is pumped into the circulation pipeline 20 by the immersed pump 11, and is pressurized by the booster centrifugal pump 32 and then injected into the jet pipeline 40, and the jet pipeline 40 is provided with a first spray head 51 and a second spray head 52, so that the oil can be sprayed to the bottom of the hole 10 again. Therefore, the jet flow operation is carried out on the same oil product in the hole body 10, the oil sludge deposited in the hole body 10 is removed, no new medium is introduced, the oil product quality is ensured, the working flow can be reduced, the process is simplified, the energy is saved, and the consumption is reduced.
Specifically, the circulation pipeline 20 communicates the inside and the outside of the hole 10, and the oil inside the hole 10 can be lifted to the ground through the circulation pipeline 20. The input end of the circulating pipeline 20 is provided with a suction pipeline 21 for sucking oil products from the bottom of the hole body 10; the output end of the circulation pipeline 20 is provided with an output pipeline 22 for injecting oil products into the hole body 10 from the ground. A filter 31 is provided between the suction pipe 21 and the output pipe 22, and is capable of filtering the oil in the circulation pipe 20.
The immersed pump 11 is arranged at the bottom in the hole body 10, the input end of the immersed pump 11 is immersed in the oil layer at the bottom of the hole body 10, and the output end of the immersed pump 11 is communicated with the suction pipeline 21 of the circulating pipeline 20. Thus, the immersed pump 11 can pump the oil at the bottom of the hole 10 into the suction pipe 21 when operating, so that the oil is lifted to the ground along the circulation pipe 20.
The ground is provided with a filter 31 and a booster centrifugal pump 32, and both the filter 31 and the booster centrifugal pump 32 are communicated with the circulating pipeline 20. The oil reaching the ground through the suction pipe 21 is simply filtered by the filter 31, and then enters the booster centrifugal pump 32 for pressurization, and the pressurized oil enters the output pipe 22 of the circulation pipe 20. The filter 31 simply filters the oil, can improve the quality of the oil, promotes the oil to be blended, and the booster centrifugal pump 32 pressurizes the oil to ensure that the oil has certain speed and pressure, and improves the jet impact strength.
The output end of the output conduit 22 communicates with a fluidic circuit 40. The fluidic circuit 40 includes a fluidic manifold 42 and a plurality of fluidic manifolds 41. The jet collecting pipe 42 comprises a collecting pipe 421 and a dividing pipe 422 which are vertically communicated, wherein a jet inlet 43 is arranged at one end of the collecting pipe 421, which is far away from the dividing pipe 422, the jet inlet 43 is communicated with the output end of the output pipeline 22, and oil in the output pipeline 22 enters the collecting pipe 421 and the dividing pipe 422 through the jet inlet 43.
The jet flow branched pipes 41 are arranged perpendicular to the branch pipes 422 of the jet flow header 42, one end of the jet flow branched pipe 41 is communicated with the branch pipes 422, the other end extends in a direction away from the jet flow header 42, and the plurality of jet flow branched pipes 41 are arranged on the same side of the jet flow header 42. Thus, after entering the inlet flow pipeline 40, the pressurized oil in the output pipeline 22 enters different jet branch pipes 41 under the splitting action of the jet collecting pipe 42.
The plurality of jet branch pipes 41 are arranged in parallel and evenly distributed at the same height of the bottom of the hole body 10, and the jet operation space of the jet pipeline 40 is evenly divided into a plurality of small operation sections through the plurality of jet branch pipes 41. The plurality of first spray heads 51 and the plurality of second spray heads 52 are arranged on the jet branch pipe 41, in addition, a plurality of third spray heads 53 are also arranged on the outer-layer jet branch pipe 41, oil products in the jet branch pipe 41 are sprayed out from the first spray heads 51, the second spray heads 52 or the third spray heads 53, and are converged into the oil products at the bottom of the hole body 10 again, and the oil sludge in each operation interval is impacted and swept. In addition, the diameter of the jet manifold 42 is larger than the sum of the diameters of the plurality of jet branch pipes 41, so that the flow velocity of the oil product is increased after the oil product enters the jet branch pipes 41 from the jet manifold 42, and the oil product can be ensured to have enough impact strength.
The bottom of the hole body 10 is provided with a fixed frame 12, and the jet pipeline 40 is arranged on the fixed frame 12 to enhance the stability. The fixed frame 12 is provided with a sliding rod 81, the sliding rod 81 extends along the length direction of the hole body 10, the bottom of the jet pipeline 40 is provided with a sliding block 82, and the sliding block 82 can drive the jet pipeline 40 to move back and forth along the length direction of the bottom of the hole body 10 along the sliding rod 81. Therefore, the jet pipeline 40 can move in a circulating mode in different areas of the bottom of the hole body 10 along the sliding rod 81 in a state that the direction is not changed, jet operation can be conducted on different areas of the bottom of the hole body 10, jet dead angles are effectively prevented from occurring, and the oil sludge impact effect is guaranteed. Correspondingly, the extension pipe 423 is arranged on the middle part of the converging pipe 421 on the jet collecting pipe 42, the extension pipe 423 is matched with the pipeline containing turntable 424, the extension pipe 423 can be released or contained according to the position of the jet branch pipe 41, and therefore the pipeline can be prevented from being wound or extruded.
Specifically, the bottom of the hole 10 is provided with a ball screw, a screw of the ball screw extends along the length direction of the hole 10, and the sliding block 82 is fixedly connected with a nut of the ball screw and can move back and forth along the screw along with the nut, that is, the screw is a sliding rod 81. The screw rod is connected with the output end of the servo motor. In addition, one end of the screw is engaged with the transmission gear 83 through a screw, and the transmission gear 83 is engaged with the rotating shaft of the receiving turntable 424 through a transition gear. Thus, the central control system controls the servo motor to operate, and the containing turntable 424 automatically finishes the storage and release of the extension pipe 423 under the rotation of the screw rod in the process of driving the jet pipeline 40 to move back and forth along the sliding rod 81. Through gear drive connection, can guarantee to accomodate the rotation of carousel 424 and the removal of slider 82 is gone on in step, and the operation is accurate, can guarantee that the length of extension pipe 423 is suitable, and on the other hand, the mechanical operation can reduce circuit and lay, improves the security.
All install the first shower nozzle 51 and the second shower nozzle 52 of a plurality of perpendicular settings on each efflux is divided pipe 41, a plurality of first shower nozzles 51 evenly distributed and vertical downwards, a plurality of second shower nozzles 52 evenly distributed and the direction of injection unanimous. Specifically, the first nozzle 51 that sets up perpendicularly can just spray the bottom of the hole body 10, according to the range scope of every first nozzle 51 to and the removal stride of efflux pipeline 40, adjusts the quantity and the interval of efflux branch pipe 41 and locates the quantity and the interval of the first nozzle 51 on the efflux branch pipe 41, thereby the whole bottom of the hole body 10 can be covered to the spray range of a plurality of first nozzles 51, prevents to appear the efflux dead angle. So, the high-speed oil that forms through the pressurization in the efflux is in charge of 41 sprays to the body of hole 10 bottom through first shower nozzle 51, because the oil impact strength who sprays out is big, perpendicular efflux operation can be broken gradually the fatlute of the body of hole 10 bottom deposit from the monoblock state of hardening, makes its mobility of recovering, eliminates and piles up the sludge, and the first shower nozzle 51 of perpendicular setting carries out the persistence impact to the body of hole 10 bottom, can effectively prevent the deposit. The horizontal second spray heads 52 have the same nozzle orientation, and high-speed oil products formed by pressurizing in the jet branch pipe 41 are sprayed out through the nozzles of the plurality of second spray heads 52, so that a certain acting force is applied to the flowing oil sludge, the oil sludge is blown and swept in the same direction, and meanwhile, the oil product rotational flow at the bottom of the hole body 10 is driven, the oil products in the hole body 10 are promoted to circularly flow, and the effects of removing the oil sludge and blending the oil products are achieved.
In addition, a plurality of third spray nozzles 53 are uniformly distributed on the jet flow branch pipe 41 positioned on the outer layer of the jet flow pipeline 40, and the third spray nozzles 53 are also arranged at one end of the jet flow branch pipe 41 far away from the jet flow header 42. The third spray head 53 is provided obliquely downward, and its output end is provided toward the outside of the jet branch pipe 41. When the jet pipeline 40 moves to the edge position of the hole 10, the third nozzle 53 arranged on the outer layer jet branch pipe 41 can impact the jet towards the bottom of the side wall of the hole 10.
The viscosity, density and solid content of the sludge deposited at the bottom of the hole body 10 gradually increase from the upper layer to the lower layer along with the increase of the settling time. The third spray nozzle 53 which is obliquely arranged is adopted to perform jet flow operation on the bottom of the side wall of the hole body 10, so that oil sludge adhered to the side wall is impacted, and jet flow dead angles are avoided. The third nozzle 53 has a certain included angle between the injection direction and the side wall of the hole 10, and has high jet impact strength and wide jet range, so that sludge adhered to the side wall can be impacted layer by layer from top to bottom.
The oil sludge scattered and smashed on the side wall of the hole body 10 flows from top to bottom along the side wall synchronously along with the oil product sprayed by the third spray nozzle 53, and is further mixed with the oil sludge at the bottom, and the oil sludge at the bottom is driven to flow to the center of the hole warehouse, so that the adhesion of the oil sludge can be effectively avoided. The oil sludge flowing to the center of the cave depot is impacted again through the first spray head 51 for secondary crushing, oil products are further mixed and continuously flow under the impact action of the second spray head 52, so that the oil product blending effect is achieved, and the oil sludge is effectively prevented from being settled again.
The output end of the first spray head 51 is fixedly connected with the annular external spray nozzle 60 through bolt fastening. The external nozzle 60 is hollow and provided with a vertically through nozzle cavity 61, and oil entering the first nozzle 51 flows through the nozzle cavity 61 from top to bottom. The nozzle chamber 61 is provided with a rotary nozzle 62 inside, a fluid passage 63 is provided inside the rotary nozzle 62, and the fluid passage 63 is provided with a plurality of discharge holes 64 on the surface of the rotary nozzle 62, that is, the plurality of discharge holes 64 on the surface of the rotary nozzle 62 communicate with each other through the fluid passage 63.
The rotating nozzle 62 is a horizontal cylinder with its central axis set horizontally and perpendicular to the flow direction of the oil in the nozzle chamber 61. The outer surface of the rotary nozzle 62 is provided with two symmetrical connecting rods 65 protruding laterally outward along the central axis, and the two connecting rods 65 are embedded in the inner wall of the outboard nozzle 60. The plurality of discharge holes 64 of the rotary nozzle 62 are located at the center of the side wall, and the center of each discharge hole 64 is equally spaced from both of the connection bars 65. When the rotary nozzle 62 rotates around the central axis, the side wall of the rotary nozzle 62 is connected with the output end of the nozzle cavity 61 in a rolling manner, and different discharge holes 64 can be exposed on the outer surface of the external nozzle 60, while other discharge holes 64 on the surface of the rotary nozzle 62 are reserved in the nozzle cavity 61 of the external nozzle 60 and are communicated with the nozzle cavity 61 of the external nozzle 60. After entering the outer nozzle 60 through the first nozzle 51, the oil enters the fluid channel 63 through a plurality of discharge holes 64 in the nozzle chamber 61 and is discharged through one discharge hole 64 with the bottom end matched with the output end of the nozzle chamber 61. The fluid channel 63 inside the rotating nozzle 62 is streamline, so that the energy loss of oil flowing inside the rotating nozzle 62 can be reduced, and the flow velocity of the oil can be kept. On the other hand, the excessive impact of oil products and the abrasion of the fluid channel 63 can be avoided, and the service life of the rotary nozzle 62 is prolonged.
The first nozzle 51 is used in conjunction with a sensor, the connecting rod 65 of the rotary nozzle 62 is used in conjunction with a stepping motor, and the distance of one discharge hole 64 can be changed for each rotary motion of the rotary nozzle 62 driven by the stepping motor. The sedimentation condition of the oil sludge in the jet area of the first spray head 51 can be monitored in real time by using a sensor, and according to the viscosity, density, thickness and other conditions of the oil sludge, the stepping motor can be adjusted by a central control system to drive the rotary nozzle 62 to rotate, and the oil sludge is sprayed by selecting the discharge hole 64 with a proper aperture, so that the flow rate and the jet intensity of the oil product sprayed from the first spray head 51 can be controlled. Specifically, in the area where the sludge deposition layer is thin, the viscosity of the sludge is low, and the density of the sludge is low, the discharge holes 64 with slightly larger hole diameters can be selected, so that jet flow disturbance is performed in a larger radiation range with weaker jet flow strength, and excessive impact on the bottom of the hole body 10 can be avoided; on the other hand, the oil gas loss in the oil product injection process can be reduced, and the safety performance is improved. In the areas with thicker oil sludge deposit layer, high oil sludge viscosity and high density, the discharge holes 64 with smaller hole diameter can be selected, the jet flow disturbance is carried out in a smaller radiation range with higher jet flow strength, the jet flow oil product is more concentrated, the impact efficiency can be improved, and the local crushing and scattering of the sludge in the heavy oil sludge area are facilitated; in addition, under the drive of oil that sprays at a high speed, the cooperation second shower nozzle 52 sweeps in the horizontal direction, the drainage effect, and the oil gas that the efflux in-process produced fuses with the fatlute that viscosity is high, density is big fast, prevents that the oil gas from overflowing, and is safe explosion-proof.
If necessary, the third spray head 53 can also be matched with an external spray nozzle 60 to adjust the flow rate and the intensity of the jet flow according to the sludge deposition condition, so that the jet flow effect is improved.
In addition, the bottom of the fixing frame 12 is provided with a plurality of vertical grid plates (not shown in the figure), the top of each grid plate is hinged with the fixing frame 12, and the bottom of each grid plate is movable. The bottom area of the hole body 10 is divided by the grating plates, and the sludge which is dispersed by the impact of the first spray head 51 is intercepted by the grating plates, so that the secondary impact of the first spray head 51 can be received conveniently, and the sludge can be further crushed until the sludge can pass through the grating. Oil in the jet flow subarea forms backflow in a small range under the impact action of the second spray nozzle 52 and the interception action of the grid plate, and oil blending is promoted. Therefore, the oil entering the circulating pipeline 20 through the immersed pump 11 is ensured not to have large-volume agglomeration, and pipeline blockage is avoided. In addition, the bottom of the grating plate can move, and the oil sludge at the bottom of the hole body 10 can impact the grating plate to incline in the flowing process to form a channel, so that the oil product can smoothly flow. Thus, the re-deposition of the dispersed oil sludge can be avoided.
The underground cave depot is arranged underground, the jet flow operation is in a totally closed state, the concentration of oil gas is gathered, and in order to improve the safety performance, an air inlet and an air outlet (not marked in the figure) are arranged on the cave body 10. In the jet flow operation process, inert gas is injected into the hole body 10 through the gas inlet, and the gas outlet is connected with external oil gas recovery equipment, so that the oil gas concentration in the hole body 10 is reduced. In addition, the inside gas concentration check out test set that disposes of the body 10 of hole, the inside oil gas concentration situation of the body 10 of can real-time supervision hole, and the operating personnel of being convenient for in time carries out technical adjustment, prevents the potential safety hazard. Correspondingly, impurity separation equipment, oily sewage treatment equipment and the like are arranged on the ground, so that the high efficiency and environmental protection of the whole operation process are realized.
The underground cave depot deposition jet flow disturbance device in the embodiment utilizes fluid jet flow operation to impact, break and blow the oil sludge at the bottom of the cave body 10, the jet flow range coverage is wide, and the oil sludge cleaning effect is obvious. Oil products inside the hole body 10 are adopted to generate circulation, oil product blending is achieved, oil product layering is prevented, a new medium is not introduced, oil product separation procedures are reduced, the labor intensity of jet flow operation is low, and the requirements for energy conservation and consumption reduction are met. The whole device is simple in structure, easy to lay and wide in application range, the main body of the whole device is composed of a pipeline structure, and safe and effective work can be achieved as long as smoothness of the pipeline can be guaranteed.
Example 2:
fig. 5 to 7 schematically show a sediment jet disturbance device for a subsurface cavern according to another embodiment of the invention, which is different from the embodiment 1 in that:
the rotating nozzle 62 is spherical and the fluid passage 63 is a hollow cavity provided inside the rotating nozzle 62.
The output end of the external nozzle 60 is provided with an annular connector 70, and the annular connector 70 and the annular connector are welded and fixed or integrally formed to prevent the connector 70 from falling off. The inner surface of the connector 70 is provided with an annular slot 71, a plurality of retractable inserts 72 are arranged in the slot 71, and the inserts 72 can move in the slot 71 in a direction close to or far away from the center of the outlet of the connector 70. Therefore, the size of the opening at the output end of the external nozzle 60 can be further adjusted by adjusting the position of the inserting piece 72, so that the oil injection range and the injection flow speed can be adjusted. For the area where the oil sludge is deposited thickly, the discharge hole 64 with a small aperture can be selected, the position of the inserting piece 72 is adjusted, and the size of the output end of the external nozzle 60 is reduced, so that the oil product sprayed from the first spray head 51 is accelerated twice, the impact strength of the oil product is ensured, and the jet flow area is concentrated, so that the agglomerated oil sludge can be efficiently crushed, the sludge is eliminated, and the oil product flow is promoted.
Specifically, the insertion piece 72 is "T" shaped, wherein one end of the vertical arrangement is a fixing plate 721, one end of the horizontal arrangement is a tentacle 722, the fixing plate 721 slides inside the slot 71 all the time, and the tentacle 722 can extend out of or retract into the slot 71 under the driving of the fixing plate 721. A first spring 73 is arranged on one side of the fixed end, which is close to the outer wall of the connector 70, one end of the first spring 73 is fixedly connected with the fixed end, and the other end is connected with the output end of the air cylinder; a second spring 74 is arranged at one side of the fixed end close to the inner wall of the connector 70, one end of the second spring 74 is fixedly connected with the fixed end, and the other end is connected with the inner wall of the slot 71; the first spring 73 and the second spring 74 are both horizontally disposed. Thus, when the output end of the external nozzle 60 needs to be reduced, the cylinder drives the first spring 73 to compress inward, and drives the insertion piece 72 to move toward the center of the connector 70, the tentacle 722 extends out of the slot 71, so as to reduce the annular space inside the connector 70, and drive the second spring 74 to compress. When the oil jet needs to be injected through a large aperture, the cylinder no longer presses the first spring 73, and the insert 72 will return to the slot 71 under the driving of the second spring 74, completely releasing the annular space inside the connector 70. The flow rate and the jet range of the jet oil product are adjusted through the embedded insertion piece 72, the occupied space is small, and the insertion piece 72 is not interfered by the sliding rod 81, the fixed frame 12 and other parts at the bottom of the jet pipeline 40 in the moving process.
The embodiments described above are intended to illustrate the technical solutions of the present invention in detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modification, supplement or similar substitution made within the scope of the principles of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The underground cave depot deposition jet flow disturbance device is characterized by comprising a cave body (10), wherein the bottom of the cave body (10) is provided with a movable jet flow pipeline (40), and a plurality of vertically arranged first spray heads (51) and a plurality of horizontally arranged second spray heads (52) are uniformly distributed on the jet flow pipeline (40);
an external nozzle (60) is arranged at the output end of the first spray head (51), a nozzle cavity (61) which penetrates through the external nozzle (60) from top to bottom is formed in the external nozzle (60), a rotary nozzle (62) is arranged in the nozzle cavity (61), a fluid channel (63) is arranged in the rotary nozzle (62), a plurality of groups of discharge holes (64) are arranged on the surface of the rotary nozzle (62) in the fluid channel (63), the input end of the nozzle cavity (61) is connected with the output end of the spray head, and the output end of the nozzle cavity (61) is in rolling fit with the outer surface of the rotary nozzle (62);
the outer surface of the rotary nozzle (62) is symmetrically provided with two connecting rods (65) protruding transversely, the two connecting rods (65) are embedded into the inner wall of the external nozzle (60), and the rotary nozzle (62) can rotate by taking the connecting rods (65) as an axis; the discharge holes (64) are uniformly distributed on the surface of the rotating nozzle (62), and the center of each discharge hole (64) is equidistant from any connecting rod (65);
the output end of the external nozzle (60) is provided with an annular connector (70), the inner surface of the connector (70) is provided with a slot (71), a plurality of telescopic inserting pieces (72) are arranged in the slot (71), and the inserting pieces (72) can move in the slot (71) along the direction close to or far away from the center of the outlet of the connector (70);
the jet pipeline (40) comprises a jet header (42) and a plurality of parallel jet branch pipes (41), and the plurality of jet branch pipes (41) are communicated with the jet header (42);
the first spray heads (51) and the second spray heads (52) are all arranged on the jet flow branch pipe (41), the first spray heads (51) are uniformly distributed and vertically arranged downwards, and the second spray heads (52) are uniformly distributed and oriented in the same direction; the jet flow branch pipe (41) positioned at the outer layer is also provided with a plurality of third spray heads (53), and the plurality of third spray heads (53) are obliquely arranged outwards.
2. The underground cavern sedimentation jet flow disturbance device as claimed in claim 1, wherein a fixed frame (12) is arranged at the bottom of the cavern body (10), a sliding rod (81) is arranged on the fixed frame (12), a sliding block (82) is arranged at the bottom of the jet flow pipeline (40), and the sliding block (82) can move back and forth along the sliding rod (81).
3. An underground cavern sediment jet perturbation device as claimed in claim 2, characterized in that the fixed frame (12) is configured with vertically arranged grating plates.
4. The underground cavern deposit jet flow disturbance device as claimed in claim 1, wherein the cavern body (10) is provided with an air inlet and an air outlet, and the air outlet is connected with an external oil gas recovery device.
5. The underground cavern deposit jet flow disturbance device as claimed in claim 1, wherein a gas concentration detection device is arranged inside the cavern body (10).
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