CN102426389A - Portable small ocean bottom seismograph - Google Patents
Portable small ocean bottom seismograph Download PDFInfo
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- CN102426389A CN102426389A CN 201110278604 CN201110278604A CN102426389A CN 102426389 A CN102426389 A CN 102426389A CN 201110278604 CN201110278604 CN 201110278604 CN 201110278604 A CN201110278604 A CN 201110278604A CN 102426389 A CN102426389 A CN 102426389A
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Abstract
The invention discloses a portable small ocean bottom seismograph. The seismograph comprises: a plastic apparatus capsule, an electric corrosion releasing mechanism and a sink coupling frame. An acoustic pressure sensor is arranged on a top of a glass cabin ball. An all-attitude high frequency detector, an acoustic communication module, a wireless beacon machine, a GPS, an electronic compass and a power supply is arranged in the glass cabin ball. The sink coupling frame is a pedestal. By using a bonding mode of the all-attitude high frequency detector, an internal space can be greatly saved. An attitude adjustment operation of an internal seismometer can be simplified. Single point connection under the ball is used as a decoupling way so that installation is easy and a structure is stable and reliable. A diameter of the glass cabin ball of the ocean bottom seismograph in the invention is 13 inches. A volume is small and weight is light. Cost is low. The internal structure is compact. An offshore construction is convenient. The apparatus possesses a high resonant frequency. A working frequency is 300Hz. The seismograph is suitable for fine seabed geology structure detection. The three-component high frequency detector and the acoustic pressure sensor can cooperate with various kinds of artificial seismic sources so as to carry out high-efficient and high-density seismic detection and geology investigations.
Description
Technical field
The present invention relates to high density earthquake acquisition technique field, is portable small-sized submarine seismograph.
Background technology
To the geologic structure of complicacy, in order to improve the quality of data of seismic prospecting, the OBS quantity that the marine inquiry agency of external single is at present used be everlasting (Kodaira et al., 2000) more than 100.The interval of OBS was in 500-1000 rice when Germany GEOPRO company carried out offshore operation.Blow out density about 50 meters.In order to study fine geology structure in the shell, high density OBS data acquisition technology has become the main flow direction and the development trend of submarine earthquake observation.This has just proposed strict requirement for the ease for use of OBS.To man-made explosion, the portable small-sized OBS that development is a container with 13 inches small-sized pressure-resistant cabin balls becomes high density OBS data acquisition technology development key technology node and receives extensive attention.
SERCEL companies in 2002 have proposed the notion of portable OBS, and begin to carry out the OBS development.Carried out the contrast test with traditional OBS in 2005 twice at the Taiwan Straits.Test card visible record function admirable, data recorded energy collecting and traditional OBS log data set are united use.SERCEL company once used 13 inches cabin ball in the development stage, but its OBS product employing is 17 inches cabin balls.Do not see the application report of 13 inches cabin ball OBS at present both at home and abroad as yet.
OBS development technology has had suitable accumulation to the inventor 95,15, under the continued support of 11th Five-Year 863 Program, and the condition of development small portable OBS is ripe.
Summary of the invention
The objective of the invention is to disclose a kind of portable small-sized submarine seismograph; Be on the basis of 17 inches single cabin ball submarine seismographs developing in earlier stage; Integrated full attitude wave detector and low-power consumption earthquake data acquisition unit in 13 inches glass cabin ball; Reduced the volume and the weight of submarine seismograph, improved the quality of image data, and the time of assurance seabed continuous working is more than 1 month.Simultaneously, according to the size of instrument room ball and structural design reliable electrocorrosion releasing mechanism, can satisfy the needs that scientific research of seas and the earthquake of marine oil and gas high density are surveyed.
For achieving the above object, technical solution of the present invention is:
A kind of portable small-sized submarine seismograph, wherein:
A) adopt 13 inches withstand voltage glass apparatus cabin ball;
B) full attitude high frequency geophone adopts bonding mode directly to be fixed on the ball inwall of glass cabin;
C) the electrocorrosion releasing mechanism is positioned at the bottom of submarine seismograph.
Described portable small-sized submarine seismograph comprises plastic instrument cabin, 13 inches glass apparatus cabin ball, lock sleeve, the coupling frame that sinks, and glass apparatus cabin ball is installed in the plastic instrument cabin; Its plastic instrument bilge end prolongs vertical center axis has a cylindrical protrusions downwards, and lock sleeve is fixed on the bottom surface of cylindrical protrusions, and heavy coupling chord position is in the lock sleeve bottom; Between lock sleeve and heavy coupling frame, is connected through tension fusing steel wire, the plastic instrument cabin is fixed in is sunk in the coupling frame with a movable rod;
13 inches of withstand voltage glass apparatus cabin bulb diameters; Integrated full attitude high frequency geophone in the ball of cabin; Full attitude high frequency geophone lower end and wave detector pallet middle part are affixed; Wave detector pallet level places ball bottom, glass apparatus cabin, and wave detector pallet periphery is bonding with glue and glass apparatus cabin ball inwall, to rigidly fix with glass apparatus cabin ball inwall.
Described portable small-sized submarine seismograph, its said lock sleeve, the annular nylon sheet in the side of comprising, wrapping wire nail, anodal, negative pole; Wherein, the annular nylon sheet in side is fixed on through web member on the bottom surface of plastic instrument cabin cylindrical protrusions, and the one side in four lateral surfaces of the annular nylon sheet in side has two screws to be used as positive pole; Two over against lateral surface a negative pole is respectively arranged; The adjustment nail is equipped with in anodal relative side, and the adjustment nail is outwards to be provided with by endoporus, the sheathed insulation sleeve in adjustment nail termination; On the lateral surface of the annular nylon sheet in side, between positive pole, negative pole, adjustment nail, be laid with the wrapping wire nail;
Fusing steel wire one end and anodal a connection; And compress the fusing steel wire with nut sheathed on the positive pole; The fusing steel wire other end in the direction of the clock; Order is through wrapping wire nail, negative pole, wrapping wire nail, adjustment nail, wrapping wire nail, negative pole, wrapping wire nail, to another positive pole, at another anodal place, anodally sheathed nut and compresses the steel wire other end that fuses with another; Wherein, the fusing steel wire is to twine positive pole, wrapping wire nail, negative pole, and at adjustment nail place, the fusing steel wire is followed closely the termination from adjustment and is pulled through, and amplexiforms with adjustment nail termination; Through the tension degree of rotation adjustment nail with adjusting fusing steel wire.
Described portable small-sized submarine seismograph; Its said heavy coupling frame comprises base, hold-down support, and the base upper surface middle part upwards sets firmly hold-down support; Frame shape hold-down support upper end is suitable with the side of lock sleeve circle of annular nylon sheet week; There is straight up a hook at the hold-down support center, and the internal diameter of upper end hook is suitable with the external diameter of a movable rod, in the hook on movable rod level is sheathed on; The length of movable rod is stretched out outside the framework of hold-down support movable rod two ends.
Described portable small-sized submarine seismograph; It is said to be connected through tension fusing steel wire with a movable rod between lock sleeve and heavy coupling frame, is when twining the fusing steel wire, between both sides negative pole and wrapping wire are followed closely; Behind the fusing steel wire two ends that the rod of winding activity downwards stretches out respectively; Accomplish again with another anodal affixed, and the tension degree of regulating the fusing steel wire with the adjustment nail, the plastic instrument cabin is fixed in the heavy coupling frame;
When instrument reclaimed, electrifying electrodes utilized the electrolyte in the seawater to produce the electrocorrosion reaction, fusing and the anodal fusing steel wire that is connected, and movable rod comes off under the effect of gravity, and throw off in heavy coupling frame and plastic instrument cabin, and floating with buoyancy in the plastic instrument cabin, reclaims.
Described portable small-sized submarine seismograph, the resonance frequency of its said full attitude high frequency geophone is 1-300Hz.
Described portable small-sized submarine seismograph, its said 13 inches withstand voltage glass apparatus cabin balls, its buoyancy is 11KG; Below the instruments weight that the overall weight of instrument constitutes for existing 17 inches withstand voltage glass cabin balls half the, can construct, reduce the single operation cost, improve operating efficiency through manual work or small crane.
Described portable small-sized submarine seismograph, its said web member is screw, screw.
Portable small-sized submarine seismograph of the present invention, volume is little, inner structure is simple, during fabrication between with workload on reduction has been arranged significantly, simple, convenient, and reduced additional chatter.And adopt the wireless blue tooth technology to carry out the scene and detect, under the prerequisite of not opening the cabin ball, can carry out the charging of data extract and instrument.At sea continuous several times is carried out the seismological observation operation, realizes high density OBS data acquisition.
Description of drawings
Fig. 1 is a portable small-sized submarine seismograph cut-away view of the present invention;
Fig. 2 (a) is portable small-sized submarine seismograph lock sleeve of the present invention and heavy coupling frame one end perspective view;
Fig. 2 (b) is portable small-sized submarine seismograph lock sleeve of the present invention and heavy coupling frame another side stereographic map;
Fig. 3 is a portable small-sized submarine seismograph stereoscopic structural drawing of the present invention;
Fig. 4 is a portable small-sized submarine seismograph general construction synoptic diagram of the present invention;
Fig. 5 (a) is portable small-sized submarine seismograph lock sleeve one a side schematic perspective view of the present invention;
Fig. 5 (b) is a portable small-sized submarine seismograph lock sleeve of the present invention another side schematic perspective view.
Embodiment
The innovative point of portable small-sized submarine seismograph of the present invention is mainly reflected in the following aspects:
(1) adopt 13 inches withstand voltage glass cabin ball, than 17 inches cabin balls that the inventor adopted in the past, it is little to have a volume; Cost is low, the advantage of being convenient to operate, and be applicable to the development of high density OBS data acquisition technology; The domestic appearance that does not still have similar small-sized OBS at present; This small-sized OBS reduces the offshore construction difficulty for fine geology structure in the research shell, and high density OBS data acquisition technology all has significance.
Offshore instrument and common land instrument and daily life electrical equipment have significant difference.The volume-diminished of submarine seismograph, weight saving can be accelerated the progress of offshore operation, improve the efficient of offshore operation, and the profit of every offshore operation ship takes usually at 10,000 yuan/day.Therefore this invention has tangible economic benefit.
The crucial part of this invention is to guarantee significantly to have reduced volume and weight under the undiminished prerequisite of instrument main performance.Submarine seismograph can be worked under 600 atmospheric hyperbaric environments, and the volume and the capacity of instrument have received strict restriction, and it must carry the work energy again, and work is more than one month.Reduced volume and weight are by no means easy, have very high technological challenge.The present invention guaranteed following bottom working time of situation that volume weight reduces more than the several months.Principal feature of the present invention is to do to have realized miniaturization under the prerequisite of time that this still belongs to the first time at home and abroad satisfying the common maritime works that stays who requires of submarine seismograph.Such as, one of exploration equipment enterprise that the whole world is maximum, the famous SECERL company of France once attempted development and adopted 13 inches withstand voltage glass cabin ball development submarine seismographs in 2003, and had carried out extra large examination.But the last product stage that is limited in because of power consumption and volume is still adopted 17 inches glass cabin balls.And the present invention is at present unique small-sized submarine seismograph that adopts 13 inches withstand voltage glass cabin balls when satisfying serviceability.
Submarine seismograph can be worked under 600 atmospheric pressure, and the abominable degree of its environment has surpassed the outer space, and so-called Heaven is the perils of the sea in the mind, seems inessential details, and reality usually can be brought distinct effect.The volume of 13 inches glass cabin balls and buoyancy have reduced over half than 17 inches traditional cabin balls.Need different uncoupling rigging and inner structures to be complementary with the buoyant characteristics of 13 inches glass cabin balls, instrument could normal come-up reclaim.It is thus clear that this invention only forms in the reduced volume of existing device anything but, has the character of innovation and creation.
Submarine seismograph must could be finalized the design through sea trial repeatedly, and the expense of sea trial is hundreds thousand of easily, and is therefore should invention patent protection necessary.
(2) adopt the mode fixing full attitude high frequency geophone directly bonding with glass bead, need not levelling device, (see figure 4); Wave detector pallet 6 lies in a horizontal plane in ball bottom, glass cabin, and is bonding with silica gel with ball junction, glass cabin; Reach fixing purpose; Full attitude high frequency geophone 4 tightens together through bolt and wave detector pallet 6, when instrument sinks to the seabed, need not adjust the angle of inclination of full attitude high frequency geophone 4; Full attitude high frequency geophone can get into normal operating conditions, and this full attitude high frequency geophone and bulkhead are realized direct-coupled mode.Can promote the acquisition performance of high-frequency signal than external employing silicone oil suspension wave detector and the mode that is coupled.Because full attitude wave detector need not adjusted attitude; Can just save the complicated machinery device of attitude adjustment simultaneously in arbitrarily angled work down, not only save weight; Also practiced thrift the inner space, the assurance of volume is provided for designing portable small-sized submarine seismograph.
As the invention that has system integration property characteristics, the full attitude high frequency geophone that the present invention adopts is the requirement customization of relevant producer according to us, and do not see has full attitude high frequency geophone to be applied to the report of submarine seismograph before.Its fixed installation mode has significantly different with silicone oil suspension wave detector.
(3) the electrocorrosion releasing mechanism is positioned at the bottom (seeing Fig. 5 (a), Fig. 5 (b)) of submarine seismograph; Compare with 17 inches single cabin ball submarine seismographs of early stage development and to have removed four groups of wireropes that are fixed on the instrument top; The installation of releasing mechanism is more simple, and reliable in action property is higher.
A kind of portable small-sized submarine seismograph of the present invention comprises plastic instrument cabin 2, glass apparatus cabin ball 3, lock sleeve 7, heavy coupling frame 8; Glass apparatus cabin ball 3 is installed in the plastic instrument cabin 2, and lock sleeve 7 is positioned at 2 bottoms, plastic instrument cabin, and heavy coupling frame 8 is positioned at the instrument bottom; Between lock sleeve 7 and heavy coupling frame 8, is connected through fusing steel wire 19, plastic instrument cabin 2 is fixed in is sunk in the coupling frame 8 with movable rod 17; Wherein:
It is nearly 50% that 17 cun withstand voltage glass cabin sphere volume, the weight that 13 inches withstand voltage glass cabin ball adopted than the inventor has in the past all reduced, and is convenient to throw in reclaim, be convenient to transportation.Be applicable to the air gun to be the high density short-term marine geologic survey operation of focus.
Inner full attitude high frequency geophone can be in arbitrarily angled work down; Therefore do not need form regulation system; Be installed together with full attitude high frequency geophone with engineering plastics ABS material processing wave detector pallet, periphery is bonding with glue and glass bead inwall, with fixed pickup.Wave detector can be rigidly fixed with pressure bulkhead, reduced the chatter interference that the complicated mechanical system brings for whole register system and wave detector.
In order to confirm the attitude of wave detector, on the wave detector seat, fix a high accuracy three-dimensional solid-state electronic compass, precision can reach 0.1 degree.
Electronic circuit, collector systems, underwater sound communication module are fixed on the top of electric battery, fix interior arrangement through glass cabin ball extruding O type circle.
The lock sleeve structure; The annular nylon sheet in the side of comprising, coiling stake, anodal, negative pole, wherein, the annular nylon sheet in side is through the bottom of screw retention at plastic instrument cabin ball; Wherein one side in the annular nylon sheet four sides, side has two screws to be used as positive pole, and two side structure symmetries respectively have a negative pole.Positive pole 21 opposites are equipped with adjusts nail 24, and when the rotation adjustment followed closely 24, the insulation sleeve 26 that outwards stretches reached the tension degree of adjusting fusing steel wire 19.On wherein anodal 21 the spiral shell button is arranged, put gland nut 22 and screw and push down fusing steel wire 19 and make it to be connected with positive pole 21.Fusing steel wire 19 is clockwise through wrapping wire nail, negative pole, wrapping wire nail, adjustment nail 24, wrapping wire nail, negative pole, wrapping wire nail, positive pole, and in the end an anodal place compresses fuse.Regulate adjustment nail 24 then, can regulate fusing steel wire 19 tension degree through rotation adjustment nail 24.In the time of taut wire, the two ends of movable rod 17 are also caught (see figure 3) by fusing steel wire 19, and movable rod 17 is tightened up equally, so just is fixed together instrument and heavy coupling frame 8 closely;
When instrument reclaims, utilize the seawater characteristic to carry out electrocorrosion fusing steel wire, movable rod comes off, and heavy coupling frame and instrument are thrown off, and instrument room utilizes the buoyant of sea water come-up, so that reclaim.
Heavy coupling frame adopts the ferrous materials of surface attachment rust protection paint to process, and upper surface middle part sets firmly a hold-down support, and there is a hook at the bearing center, and this hook is used for movable rod suitable;
Closely link to each other with lock sleeve through the fused steel wire tension of movable rod; Its weight and volume is suitable for control rate of sinking and sinking attitude in the sinking process; And for seismograph provides stable pedestal in seabed work, after the instrument come-up, heavy coupling frame is discarded in the seawater.
Full attitude high frequency geophone frequency band is 1-300Hz, and the mobile seismological observation mode in its seabed is:
To the geologic structure of complicacy, in order to improve the quality of data of seismic prospecting, the OBS quantity that the marine inquiry agency of present single is used is everlasting more than 100.The interval of OBS is in 500-1000 rice.Blow out density about 50 meters.In order to study fine geology structure in the shell, high density OBS data acquisition technology has become the main flow direction and the development trend of submarine earthquake observation.To man-made explosion, development is the portable small-sized OBS realization high density OBS data acquisition technology of container with 13 cun small-sized pressure-resistant cabin balls.
Portable small-sized submarine seismograph receives artificial source signal and carries out active observation, and with the high-frequency wave detector of full attitude, the data of acquisition can the comparatively meticulous geologic structure of Inversion for bottom, the geologic structure resolution height of observation.
See also shown in Fig. 1～Fig. 5 (a), Fig. 5 (b), be portable small-sized submarine seismograph structural representation of the present invention.Wherein, underwater sound pressure transducer 1, plastic instrument cabin 2, glass apparatus cabin ball 3, full attitude high frequency geophone 4, battery board bracket 5, wave detector pallet 6, lock sleeve 7, heavy coupling frame 8, vacuum valve 9, gps antenna 10, the underwater sound and control circuit board 11, electric battery 12, electric battery press strip 13, O type circle 14, electric battery pallet 15, wrapping wire nail 16, movable rod 17, hook 18, fusing steel wire 19, support 20, anodal 21, gland nut 22, negative pole 23, adjustment nail 24, through hole 25, insulation sleeve 26.
13 cun portable submarine seismographs of cabin ball of the present invention are made up of plastic instrument cabin 2, lock sleeve 7, heavy coupling frame 8 three parts.Wherein lock sleeve 7 in the bottom in plastic instrument cabin 2, belongs to recyclable part with the instrument room ball through four groups of screw retention, heavy coupling frame be placed on lock sleeve 7 below, through movable rod 17 by 19 tensions of fusing steel wires and lock sleeve 7 (see figure 3)s that closely link to each other.When portable submarine seismograph receive release order after, fusing steel wire 19 through the fusing of marine corrosion principle after, the instrument room ball relies on the buoyant of sea water come-up with lock sleeve, salvages recovery.
One, instrument room ball:
Instrument room 2 comprises ball cabin, 13 cun glass apparatus cabins ball 3 and protects with salmon pink plastic jacket plastic instrument cabin 2; Instrument room is the recyclable part of submarine seismograph; The single ball integral structure of glass apparatus cabin ball 3 inner employings; The main following (see figure 4) of composition mode: at first the threaded hole of full attitude high frequency geophone through the bottom is fixed on the wave detector pallet 6; The wave detector pallet 6 that will be processed by the plastics ABS material again and full attitude high frequency geophone integral adhesive be centre position, ball bottom in the glass cabin, and the periphery of wave detector pallet 6 is bonding with glue and glass bead inwall.
Through the screw attaching battery board bracket 5 is arranged above the wave detector pallet 6; Place electric battery pallet 15 above the battery board bracket 5; The parallel side by side placement four joint chargeable lithium cells in electric battery pallet 15 inside; Fix through circuit board press strip 13, pass through interlock circuit building blocks such as the screw retention underwater sound and control circuit board 11 above the circuit board press strip 13.Glass cabin ball loam cake makes it distortion through the O type circle 14 of extruding electric battery pallet 15 outer rings, increases friction force and fixes interior arrangement.
The inner circuit part of instrument room ball is formed as follows:
(1) underwater sound communication module: be integrated on the underwater sound and the control circuit board 11, through screw retention on circuit board press strip 13, its principle of work (seeing also " seven-channel multi-functional submarine seismograph " application number is 200810117385.4).
Adopt 8 bit FSK numerical codings.Receive the sign indicating number that releases order that sends on the deck, feed back to control panel, accomplish the steering order of instrument come-up and send.Maximum communication distance can reach 10,000 meters.
(2) collector systems: be integrated on the underwater sound and the control circuit board 11, through screw retention on circuit board press strip 13, principle of work (seeing also " seven-channel multi-functional submarine seismograph " application number is 200810117385.4)
Three passages of seismometer and underwater sound pressure transducer are carried out signals collecting and storage.Its power consumption only has 0.2W, can satisfy the needs of long-term submarine observation.
(3) seismograph power supply: four joint lithium battery battery laid parallels are pushed down through circuit board press strip 13 in electric battery pallet 15 (see figure 4)s, are screwed on electric battery pallet 15.Principle of work (seeing also " seven-channel multi-functional submarine seismograph " application number is 200810117385.4)
Portable small-sized submarine seismograph battery adopts the 10AH lithium battery, and every cover instrument is installed 4 pieces.Each lithium battery is with protector separately, and battery is fixed on the bottom of glass cabin ball by ring-type, and seismograph detects through the charging and discharging state and the voltage of single-chip microcomputer to each battery, and can show through interactive interface.Charging is carried out through the socket on the ball of cabin, and the user can understand information such as the charge capacity, duration of charging of each battery.Charger user through special use can accomplish the charging work to submarine seismograph in several hours.Each charging operations user can both grasp charging front and back cell voltage state, and information such as charge capacity can in time be found the situation that battery failure or performance reduce.Thereby dead battery is in time changed, or shortened the time of instrument in seabed work according to the situation that battery performance reduces.
Built-in power management module can be supervised the electric energy reserves of battery in real time, and when energy is lower than a certain predetermined value, seismograph can be closed all current consuming apparatus except underwater sound communication, and the time that seismograph is detained more than 1 year in the seabed still can normally reclaim.
(4) data extract mode (seeing also " seven-channel multi-functional submarine seismograph " application number is 200810117385.4)
In order to guarantee that marine repeatedly operation carries out smoothly, data extraction module must be easy to operate and be needed transmission speed faster.Embedded usb interface module and PC carry out high-speed data exchange among the OBS, can under the prerequisite of not opening the cabin ball, realize the data extract of OBS with higher speed (2M byte per second).
(5) stroboscopic lamp (seeing also " seven-channel multi-functional submarine seismograph " application number is 200810117385.4)
When instrument floated, stroboscopic lamp is the effectively convenient recovery in orientation, indicating instrument place in night.
The top that stroboscopic lamp is placed in ball cabin, glass cabin ball utilizes hydraulic pressure switch to control, and when the instrument come-up, hydraulic pressure reduces, stroboscopic lamp work, and light source adopts luminescence efficiency high, and penetrability is high brightness LED preferably.Can continuous working more than 12 hours.。
Two, lock sleeve:
Lock sleeve 7 passes through four groups of screw retention below the ball of plastic instrument cabin; The annular nylon sheet in lock sleeve 7 sides of comprising, wrapping wire nail 16, positive pole 21, negative pole 23; Wherein one side in the annular nylon sheet four sides, side has two screws to be used as anodal 21 (seeing Fig. 5 (a), Fig. 5 (b)), and two side structure symmetries respectively have a negative pole 23.Anodal 21 opposites are equipped with adjustment nail 24.On wherein anodal 21 the spiral shell button is arranged, put gland nut 22 and screw and push down fusing steel wire one end and make it to be connected with positive pole.Follow closely 16 through wrapping wire clockwise with a fusing steel wire 19, positive pole, negative pole is with movable rod 17 tensions, and movable rod 17 passes the hook 18 at heavy coupling frame center simultaneously, heavy coupling frame 8 tensions.Fusing steel wire 19 compresses through gland nut 22 with positive pole 21 and is connected; Through 23, two negative poles of two negative poles promptly is two striking points, and in the end an anodal place compresses fusing steel wire 19.Rotation adjusting adjustment nail can be regulated steel wire tension degree through rotation adjustment nail then.In the time of taut wire, the two ends of movable rod 17 are caught (see figure 3) by steel wire, and movable rod is tightened up equally, so just are fixed together instrument and heavy coupling frame closely;
When instrument reclaims, utilize the seawater characteristic to carry out electrocorrosion fusing steel wire, movable rod comes off, and heavy coupling frame and instrument are thrown off, and instrument room utilizes the buoyant of sea water come-up, so that reclaim.
(1) lock sleeve 7 adopt have high mechanical properties, high rigidity, engineering plastic nylon that toughness is strong process, and be not yielding in water, be difficult for being corroded.
(2) wrapping wire nail 16 is parts comparatively crucial in the uncoupling rigging, so adopt the special stainless steel of 316L to process, this material all is superior to common stainless steel for the corrosion resistance of seawater and various corrosive mediums.
(3) fusing steel wire 19 is core components of whole uncoupling rigging, selects 316 corrosion-resistant steel wires for use, is processed through special process by 49 strands of finer wires of 7 bundles, is prone to bent and soft.When bending, do not resemble and seem too hard the single steel wire, can be close to the wrapping wire nail during tension.
Three, heavy coupling frame:
Closely link to each other with lock sleeve through the fused steel wire tension of movable rod; Its weight and volume is suitable for control rate of sinking and sinking attitude in the sinking process; And for seismograph provides stable pedestal in seabed work, after the instrument come-up, heavy coupling frame is discarded in the seawater.
Use dynamic process:
Choose and throw in place and orientation, render to the seabed to submarine seismograph, after instrument lands, accurately locate with sonar system immediately.After this inner seismometer and digital collection device get into duty simultaneously, and disturb and seismic signal in the continuous recording seabed, and be stored in the internal storage.
When the needs collection apparatus, send the recovery signal in the surrounding waters, position at this instrument place through sonar system, after instrument is received signal; Begin the steel wire that fuses; About 3 minutes instrument rooms and heavy coupling frame 8 break away from, and float automatically to the water surface, send the positional information at its places behind the emersion sea through gps antenna 10; Confirm the instrumental azimuth according to this information or range estimation mode, salvage and go on board.Extracting recorded data then supplies to analyze and research.
(1) adopts 13 inches withstand voltage glass beads
It is nearly 50% that 17 cun withstand voltage glass cabin sphere volume, the weight that 13 inches withstand voltage glass cabin ball adopted than the inventor has in the past all reduced, and is convenient to throw in reclaim, be convenient to transportation.Be applicable to the air gun to be the high density short-term marine geologic survey operation of focus.Beyond example still also in the seafari at home and abroad of this portable submarine seismograph.
(2) trip mechanism
It is to be solidly connected that uncoupling rigging adopts lock sleeve 7 and movable rod 17 wireropes, utilizes the fastening degree of adjustment nail 24 taut wires adjustment instrument room, and whole process is convenient to fitting operation; When instrument reclaims; Underwater sound pressure transducer receives releasing order that the water surface sends; Positive pole on the lock sleeve of submarine seismograph begins to power up and utilizes the seawater characteristic to carry out electrocorrosion fusing steel wire 19, and movable rod 17 is thrown off with fusing steel wire 19, and instrument room utilizes the buoyant of sea water come-up.Short and good reliability of the removal process time of submarine seismograph.
(3) wave detector and glass bead wall are rigidly connected
Because the high frequency geophone of the full attitude work of instrument internal; Need not consider the equilibrium problem of full attitude high frequency geophone; Can full attitude high frequency geophone and wave detector pallet be rigidly connected with the glass bead wall as a whole, and around plastic hoop, be coated with glass cement, fix wave detector.Circuit board be installed in battery cover above, the simplification of inner structure makes the assembling instrument on time and workload, have significantly to reduce, and is simple, convenient and reduced additional chatter.
Submarine seismograph in the past (the high-frequency seabed seismograph of developing in earlier stage such as the inventor of three-component); Because seismometer need be adjusted balance; Adopted a cover Chang Pingji tool structure to adjust,, increased complicated mechanical operating system so can not be rigidly connected with the ball wall; Increased the space, and be easy to generate the record of additional chatter noise effect instrument the earthquake signal.
The structure that is rigidly connected of this wave detector and ball wall is the novelty invention; This dwindles the inner space of portable submarine seismograph greatly; Realize that the complexity of producing in batches reduces greatly, this technology also can apply in the miscellaneous equipment that adopts this type of cabin ball simultaneously.
Claims (8)
1. portable small-sized submarine seismograph is characterized in that:
A) adopt 13 inches withstand voltage glass apparatus cabin ball;
B) full attitude high frequency geophone adopts bonding mode directly to be fixed on the ball inwall of glass cabin;
C) the electrocorrosion releasing mechanism is positioned at the bottom of submarine seismograph.
2. portable small-sized submarine seismograph as claimed in claim 1 comprises plastic instrument cabin, 13 inches glass apparatus cabin ball, electrocorrosion releasing mechanism, and glass apparatus cabin ball is installed in the plastic instrument cabin; It is characterized in that: plastic instrument bilge end prolongs vertical center axis has a cylindrical protrusions downwards, and the electrocorrosion releasing mechanism comprises lock sleeve, heavy coupling frame, and lock sleeve is fixed on the bottom surface of cylindrical protrusions, and heavy coupling chord position is in the lock sleeve bottom; Between lock sleeve and heavy coupling frame, is connected through tension fusing steel wire, the plastic instrument cabin is fixed in is sunk in the coupling frame with a movable rod;
13 inches of withstand voltage glass apparatus cabin bulb diameters; Integrated full attitude high frequency geophone in the ball of cabin; Full attitude high frequency geophone lower end and wave detector pallet middle part are affixed; Wave detector pallet level places ball bottom, glass apparatus cabin, and wave detector pallet periphery is bonding with glue and glass apparatus cabin ball inwall, to rigidly fix with glass apparatus cabin ball inwall.
3. portable small-sized submarine seismograph as claimed in claim 2; It is characterized in that: said lock sleeve, the annular nylon sheet in the side of comprising, wrapping wire nail, anodal, negative pole, wherein; The annular nylon sheet in side is fixed on the bottom surface of plastic instrument cabin cylindrical protrusions through web member; One side in side's annular nylon sheet four lateral surfaces has two screws to be used as positive pole, two over against lateral surface a negative pole is respectively arranged, the adjustment nail is equipped with in anodal relative side; The adjustment nail is outwards to be provided with by endoporus, the sheathed insulation sleeve in adjustment nail termination; On the lateral surface of the annular nylon sheet in side, between positive pole, negative pole, adjustment nail, be laid with the wrapping wire nail;
Fusing steel wire one end and anodal a connection; And compress the fusing steel wire with nut sheathed on the positive pole; The fusing steel wire other end in the direction of the clock; Order is through wrapping wire nail, negative pole, wrapping wire nail, adjustment nail, wrapping wire nail, negative pole, wrapping wire nail, to another positive pole, at another anodal place, anodally sheathed nut and compresses the steel wire other end that fuses with another; Wherein, the fusing steel wire is to twine positive pole, wrapping wire nail, negative pole, and at adjustment nail place, the fusing steel wire is followed closely the termination from adjustment and is pulled through, and amplexiforms with adjustment nail termination; Through the tension degree of rotation adjustment nail with adjusting fusing steel wire.
4. portable small-sized submarine seismograph as claimed in claim 2; It is characterized in that: said heavy coupling frame, comprise base, hold-down support, the base upper surface middle part upwards sets firmly hold-down support; Frame shape hold-down support upper end is suitable with the side of lock sleeve circle of annular nylon sheet week; There is straight up a hook at the hold-down support center, and the internal diameter of upper end hook is suitable with the external diameter of a movable rod, in the hook on movable rod level is sheathed on; The length of movable rod is stretched out outside the framework of hold-down support movable rod two ends.
5. like claim 2,3 or 4 described portable small-sized submarine seismographs; It is characterized in that: saidly between lock sleeve and heavy coupling frame, being connected through tension fusing steel wire with a movable rod, is when twining the fusing steel wire, between both sides negative pole and wrapping wire are followed closely; Behind the fusing steel wire two ends that the rod of winding activity downwards stretches out respectively; Accomplish again with another anodal affixed, and the tension degree of regulating the fusing steel wire with the adjustment nail, the plastic instrument cabin is fixed in the heavy coupling frame;
When instrument reclaimed, electrifying electrodes utilized the electrolyte in the seawater to produce the electrocorrosion reaction, fusing and the anodal fusing steel wire that is connected, and movable rod comes off under the effect of gravity, and throw off in heavy coupling frame and plastic instrument cabin, and floating with buoyancy in the plastic instrument cabin, reclaims.
6. according to claim 1 or claim 2 portable small-sized submarine seismograph, it is characterized in that: the resonance frequency of said full attitude high frequency geophone is 1-300Hz.
7. according to claim 1 or claim 2 portable small-sized submarine seismograph is characterized in that: said 13 inches withstand voltage glass apparatus cabin balls, and its buoyancy is 11KG; Below the instruments weight that the overall weight of instrument constitutes for existing 17 inches withstand voltage glass cabin balls half the, can construct, reduce the single operation cost, improve operating efficiency through manual work or small crane.
8. portable small-sized submarine seismograph as claimed in claim 3 is characterized in that: said web member is screw, screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110278604 CN102426389B (en) | 2011-09-19 | 2011-09-19 | Portable small ocean bottom seismograph |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110278604 CN102426389B (en) | 2011-09-19 | 2011-09-19 | Portable small ocean bottom seismograph |
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| CN102426389A true CN102426389A (en) | 2012-04-25 |
| CN102426389B CN102426389B (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110278604 Expired - Fee Related CN102426389B (en) | 2011-09-19 | 2011-09-19 | Portable small ocean bottom seismograph |
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| CN105068132A (en) * | 2015-08-12 | 2015-11-18 | 上海云灵信息技术有限公司 | Portable single-cabinet ball highly-integrated seabed electromagnetic device |
| CN105676210A (en) * | 2016-02-29 | 2016-06-15 | 北京南风科创应用技术有限公司 | Pressure sensor equipped inverted echo sounder |
| CN105911581A (en) * | 2016-04-05 | 2016-08-31 | 中国科学院南海海洋研究所 | Subbottom observation platform, seabed relative geodesic device and system |
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| CN110850475A (en) * | 2019-10-17 | 2020-02-28 | 北京港震科技股份有限公司 | Large-loop leveling device |
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