CN102426389B - Portable Small Seabed Seismograph - Google Patents
Portable Small Seabed Seismograph Download PDFInfo
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- CN102426389B CN102426389B CN 201110278604 CN201110278604A CN102426389B CN 102426389 B CN102426389 B CN 102426389B CN 201110278604 CN201110278604 CN 201110278604 CN 201110278604 A CN201110278604 A CN 201110278604A CN 102426389 B CN102426389 B CN 102426389B
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Abstract
本发明公开了一种便携式小型海底地震仪，包括塑料仪器舱、电腐蚀释放机构和沉耦架，塑料仪器舱内的玻璃舱球顶部有水声压力传感器，内部有全姿态高频检波器、水声通讯模块、无线信标机、GPS、电子罗盘和电源，沉耦架为基座。全姿态高频检波器的粘接方式大量节省内部空间，简化了内部地震计的姿态调整操作。脱钩方式用球下单点连接，易于安装，结构稳定可靠。本发明海底地震仪的玻璃舱球直径13英寸，体积小、重量轻、成本低，内部结构紧凑，海上施工方便；仪器具有很高的谐振频率，工作频率300Hz，适用海底精细地质结构探测。其三分量高频检波器和水声压力传感器，可与各种人工震源配合进行高效高密度海底地震探测、地质调查。
The invention discloses a portable small seabed seismograph, which comprises a plastic instrument cabin, an electro-corrosion release mechanism and a sinking coupling frame. There is an underwater acoustic pressure sensor on the top of the glass cabin ball in the plastic instrument cabin, and a full-position high-frequency detector, Underwater acoustic communication module, wireless beacon machine, GPS, electronic compass and power supply, the sinking coupling frame is the base. The bonding method of the full-attitude high-frequency geophone saves a lot of internal space and simplifies the attitude adjustment operation of the internal seismometer. The decoupling method uses a single-point connection under the ball, which is easy to install and has a stable and reliable structure. The submarine seismograph of the present invention has a glass cabin ball with a diameter of 13 inches, small volume, light weight, low cost, compact internal structure, and convenient offshore construction; the instrument has a high resonance frequency and an operating frequency of 300 Hz, and is suitable for detecting fine seabed geological structures. Its three-component high-frequency geophone and hydroacoustic pressure sensor can cooperate with various artificial seismic sources for efficient and high-density submarine seismic detection and geological survey.
Description
Technical field
The present invention relates to the high-density seismic acquisition technical field, is Portable small ocean bottom seismograph.
Background technology
For the complex geological conditions structure, in order to improve the quality of data of seismic prospecting, the OBS quantity that the marine inquiry agency of external at present single is 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 main flow direction and the development trend of Submarine seismic observation.This has just proposed strict requirement for the ease for use of OBS.For man-made explosion, it is in widespread attention that the portable small-sized OBS of development take 13 inches small-sized pressure-resistant cabin balls as container becomes the gordian technique node of high density OBS data acquisition technology development.
SERCEL companies in 2002 have proposed the concept of portable OBS, and begin to carry out the OBS development.Carried out twice and the contrast test of traditional OBS at the Taiwan Straits in 2005.Test card visible record function admirable, the data energy collecting of record 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.There is not yet at present the application report of 13 inches cabin ball OBS both at home and abroad.
The OBS Development Techniques 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 ocean bottom seismograph, on the basis of 17 inches single cabin ball submarine seismographs in earlier stage developing, integrated full attitude wave detector and low-power consumption earthquake data acquisition unit in 13 inches glass cabin ball, volume and the weight of submarine seismograph have been reduced, 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 ocean bottom 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 ocean bottom 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 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 by tension fusing steel wire with a movable rod, the plastic instrument cabin is fixed in is sunk in the coupling frame;
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, 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 ocean bottom seismograph, its described 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 by 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, anodal relative side is equipped with and is adjusted nail, and adjusting nail is outwards to be arranged by endoporus, adjusts the sheathed insulation sleeve in 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 with nut compression fusing steel wire sheathed on the positive pole, the fusing steel wire other end in the direction of the clock, order through wrapping wire nail, negative pole, wrapping wire nail, adjust nail, wrapping wire nail, negative pole, wrapping wire follow closely, to another positive pole, at another anodal place, compress the fusing steel wire other end with another anodal sheathed nut; Wherein, the fusing steel wire is to twine anodal, wrapping wire nail, negative pole, is adjusting the nail place, and the fusing steel wire is pulled through from adjusting the nail termination, follows closely the termination with adjustment and amplexiforms; Adjust nail to regulate the tension degree of fusing steel wire by rotation.
Described Portable small ocean bottom seismograph, its described 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.
Described Portable small ocean bottom seismograph, it is described to be connected by tension fusing steel wire with a movable rod between lock sleeve and heavy coupling frame, when twining the fusing steel wire, between both sides negative pole and wrapping wire nail, behind the fusing steel wire two ends that the rod of winding activity downwards stretches out respectively, finish again affixed with another positive pole, and the tension degree of regulating the fusing steel wire to adjust 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 action of gravitation, and throw off in heavy coupling frame and plastic instrument cabin, and floating with buoyancy in the plastic instrument cabin, reclaims.
Described Portable small ocean bottom seismograph, the resonance frequency of its described full attitude high frequency geophone is 1-300Hz.
Described Portable small ocean bottom seismograph, its described 13 inches withstand voltage glass apparatus cabin balls, its buoyancy is 11KG; Below half of the instruments weight that the overall weight of instrument consists of for existing 17 inches withstand voltage glass cabin balls, can construct by artificial or small crane, reduce the single operation cost, improve operating efficiency.
Described Portable small ocean bottom seismograph, its described web member is screw, screw.
Portable small ocean bottom seismograph of the present invention, volume is little, inner structure is simple, during fabrication between and reduction has been arranged significantly on the workload, simple, convenient, and reduced additional chatter.And adopt the wireless blue tooth technology to carry out Site Detection, under the prerequisite of not opening the cabin ball, can carry out data and extract and the instrument charging.At sea continuous several times is carried out the seismological observation operation, realizes high density OBS data acquisition.
Description of drawings
Fig. 1 is Portable small ocean bottom seismograph cut-away view of the present invention;
Fig. 2 (a) is Portable small ocean bottom seismograph lock sleeve of the present invention and heavy coupling frame one end perspective view;
Fig. 2 (b) is Portable small ocean bottom seismograph lock sleeve of the present invention and heavy coupling frame another side stereographic map;
Fig. 3 is Portable small ocean bottom seismograph stereoscopic structural drawing of the present invention;
Fig. 4 is Portable small ocean bottom seismograph general construction synoptic diagram of the present invention;
Fig. 5 (a) is Portable small ocean bottom seismograph lock sleeve one side schematic perspective view of the present invention;
Fig. 5 (b) is Portable small ocean bottom seismograph lock sleeve of the present invention another side schematic perspective view.
Embodiment
The innovative point of Portable small ocean bottom seismograph of the present invention is mainly reflected in the following aspects:
(1) adopts 13 inches withstand voltage glass cabin ball, 17 inches cabin balls that in the past adopted than the inventor, it is little to have volume, cost is low, the advantage of convenient operation, and be applicable to the development of high density OBS data acquisition technology, the at present domestic appearance that does not still have similar small-sized OBS, this small-sized OBS reduces the offshore construction difficulty for fine geology structure in the research shell, and high density OBS data acquisition technology is important in inhibiting all.
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 obvious 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 of instrument and capacity have been subject to 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 lower 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 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.As seen, 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, so this patent application patent protection is necessary.
(2) adopt the mode fixing full attitude high frequency geophone direct bonding with glass bead, need not levelling device, (seeing Fig. 4), wave detector pallet 6, lie in a horizontal plane in ball bottom, glass cabin, bonding with silica gel with ball junction, glass cabin, reach fixing purpose, full attitude high frequency geophone 4 tightens together by bolt and wave detector pallet 6, when instrument sinks to the seabed, do not need to adjust the angle of inclination of full attitude high frequency geophone 4, full attitude high frequency geophone can enter 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 that attitude is adjusted simultaneously in arbitrarily angled lower work, not only save weight, also saved the inner space, the assurance of volume is provided for the design Portable small ocean bottom seismograph.
As the invention with system integration characteristics, the full attitude high frequency geophone that the present invention adopts be relevant producer according to our requirement customization, be applied to the report of submarine seismograph there are no full attitude high frequency geophone before.Its fixed installation mode has significantly different from 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 Reliability of Microprocessor is higher.
A kind of Portable small ocean bottom 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 by fusing steel wire 19 with movable rod 17, plastic instrument cabin 2 is fixed in is sunk in the coupling frame 8; 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 high density short-term marine geologic survey operation take air gun as focus.
Inner full attitude high frequency geophone can be in arbitrarily angled lower work, 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 that complicated mechanical system brings for whole register system and wave detector and disturbed.
In order to determine the attitude of wave detector, fix a high accuracy three-dimensional solid-state electronic compass at the wave detector seat, precision can reach 0.1 degree.
Electronic circuit, collector systems, underwater acoustic communication module are fixed on the top of electric battery, fix interior arrangement by 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 fixed by screws in the bottom of 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 rotation adjustment followed closely 24, the insulation sleeve 26 that outwards stretches reached the tension degree of adjusting fusing steel wire 19.Wherein the spiral shell button is arranged on anodal 21, put gland nut 22 and screw and push down fusing steel wire 19 and make it to be connected with anodal 21.Fusing steel wire 19 is process wrapping wire nail, negative pole, wrapping wire nail, adjustment nail 24, wrapping wire nail, negative pole, wrapping wire nail, positive pole clockwise, in the end a positive pole place compression fuse.Then regulate and adjust nail 24, adjust nail 24 by rotation and can regulate fusing steel wire 19 tension degree.In the time of taut wire, the two ends of movable rod 17 are also caught (seeing Fig. 3) by fusing steel wire 19, and movable rod 17 is tightened up equally, so just instrument and heavy coupling frame 8 is fixed together closely;
Utilize characteristic of ocean to carry out electrocorrosion fusing steel wire when instrument reclaims, movable rod comes off, and heavy coupling frame and instrument are thrown off, and instrument room utilizes the buoyant of sea water come-up, in order to reclaim.
Heavy coupling frame adopts the ferrous materials of surface attachment rust protection paint to make, 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 by the movable rod Wire pulling that fused, 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:
For the complex geological conditions structure, 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 main flow direction and the development trend of Submarine seismic observation.For man-made explosion, the portable small-sized OBS of development take 13 cun small-sized pressure-resistant cabin balls as container realizes high density OBS data acquisition technology.
Portable small ocean bottom 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 ocean bottom 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, adjust nail 24, through hole 25, insulation sleeve 26.
13 cun portable submarine seismographs of cabin ball of the present invention are comprised of plastic instrument cabin 2, lock sleeve 7, heavy coupling frame 8 three parts.Wherein lock sleeve 7 is fixed on the bottom in plastic instrument cabin 2 by four groups of screws, belong to recyclable part with the instrument room ball, heavy coupling frame be placed on lock sleeve 7 below, by movable rod 17 by 19 tensions of fusing steel wires and lock sleeve 7 closely link to each other (seeing Fig. 3).When portable submarine seismograph receive release order after, fusing steel wire 19 by 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 salmon pink plastic jacket plastic instrument cabin 2 is used in protection; instrument room is the recyclable part of submarine seismograph; the single ball integral structure of glass apparatus cabin ball 3 inner employings; chief component mode following (seeing Fig. 4): at first the threaded hole of full attitude high frequency geophone by 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 are in centre position, glass cabin ball bottom, and the periphery of wave detector pallet 6 is bonding with glue and glass bead inwall.
By the screw attaching battery board bracket 5 is arranged above the wave detector pallet 6, placing battery group pallet 15 above the battery board bracket 5, electric battery pallet 15 inside are parallel placement four joint chargeable lithium cells side by side, fix by circuit board press strip 13, above the circuit board press strip 13 by the fixing interlock circuit building block such as the underwater sound and control circuit board 11 of screw.Glass cabin ball loam cake makes it distortion by the O type circle 14 of extruding electric battery pallet 15 outer rings, and increasing friction force fixes interior arrangement.
The circuit part of instrument room ball inside is composed as follows:
(1) underwater acoustic communication module: be integrated on the underwater sound and the control circuit board 11, be fixed by screws in above the 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 code that releases order that sends on the deck, feed back to control panel, the steering order of finishing the instrument come-up sends.Maximum communication distance can reach 10,000 meters.
(2) collector systems: be integrated on the underwater sound and the control circuit board 11, be fixed by screws in above the 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 by circuit board press strip 13 at electric battery pallet 15 (seeing Fig. 4), are screwed on electric battery pallet 15.Principle of work (seeing also " seven-channel multi-functional submarine seismograph " application number is 200810117385.4)
The Portable small ocean bottom seismograph battery adopts 10AH lithium battery, 4 pieces of every cover apparatus installations.Each lithium battery is with separately protector, and battery is fixed on the bottom of glass cabin ball by ring-type, and seismograph detects by charging and discharging state and the voltage of single-chip microcomputer to each battery, and can show by interactive interface.Charging is undertaken by the socket on the ball of cabin, and the user can understand the information such as the charge capacity, duration of charging of each battery.Charger user by special use can finish the charging work to submarine seismograph within a few hours.Each charging operations user can both grasp charging front and back cell voltage state, and the 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 instrument in the time of 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 extracting 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 faster transmission speed.Embedded usb interface module and PC carry out the high-speed data exchange among the OBS, can under the prerequisite of not opening the cabin ball, realize that with higher speed (2M byte per second) data of OBS are extracted.
(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 is fixed on below the ball of plastic instrument cabin by four groups of screws, 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 adjusts nail 24.Wherein the spiral shell button is arranged on anodal 21, 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 is connected by gland nut 22 compressions with anodal 21; Namely be two striking points through 23, two negative poles of two negative poles, in the end an anodal place compresses fusing steel wire 19.Then rotation is regulated and is adjusted nail, adjusts nail by rotation and can regulate the Wire pulling degree.In the time of taut wire, the two ends of movable rod 17 are caught (seeing Fig. 3) by steel wire, and movable rod is tightened up equally, so just instrument and heavy coupling frame are fixed together closely;
Utilize characteristic of ocean to carry out electrocorrosion fusing steel wire when instrument reclaims, movable rod comes off, and heavy coupling frame and instrument are thrown off, and instrument room utilizes the buoyant of sea water come-up, in order to 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 make, this material all is better than 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, is processed through special process by 49 strands of finer wires of 7 bundles, and is easily 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.
Lock sleeve 7 is as the important composition parts of instrument removal process, and the assembling of mechanism, debugging work all can be passed through indoor the test, just can install and use.The good lock sleeve of test is fixed on the bottom of instrument room by 4 groups of stainless steel screws, can be very fast finish assembling.Parts machining process in the mechanism and selection all can guarantee to work long hours in seawater, and after the while can be implemented in and receive instruction, steel wire was namely fused in 200 seconds.The instrument floating-upward process can be monitored by the variation of subaqueous sound ranging.
Three, heavy coupling frame:
Closely link to each other with lock sleeve by the movable rod Wire pulling that fused, 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, submarine seismograph is rendered to the seabed, after instrument lands, accurately locate with sonar system immediately.After this inner seismometer and digital acquisition device enter duty simultaneously, and disturb and seismic signal in the continuous recording seabed, and be stored in the internal storage.
When the needs collection apparatus, the recovery signal is sent by sonar system in surrounding waters, position at this instrument place, 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 automatically float to the water surface, send the positional information at its places behind the emersion sea by gps antenna 10, determine the instrumental azimuth according to this information or range estimation mode, salvage and go on board.Then extract recorded data for analyzing 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 high density short-term marine geologic survey operation take air gun as focus.Also there is no precedent in the seafari at home and abroad of this portable submarine seismograph.
(2) trip mechanism
Uncoupling rigging adopts lock sleeve 7 and movable rod 17 wireropes system to be solidly connected, and utilizes and adjusts the fastening degree that nail 24 taut wires are adjusted 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 characteristic of ocean 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.The removal process time of submarine seismograph is short and reliability is strong.
(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, full attitude high frequency geophone and wave detector pallet can 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 has been so that the assembling instrument has had significantly reduction in time and workload, and is simple, convenient and reduced additional chatter.
Submarine seismograph in the past (the high-frequency seabed seismograph of three-component of in earlier stage developing such as the inventor), because seismometer need to be adjusted balance, adopted a cover Chang Pingji tool structure to adjust, so can not be rigidly connected with the ball wall, increased complicated mechanically actuated system, increase the space, and produced easily additional chatter noise effect instrument to the record of earthquake signal.
The rigid connection structure of this wave detector and ball wall is the novelty invention, this dwindles the inner space of portable submarine seismograph greatly, the complexity that realizes batch production reduces greatly, and this technique also can apply in the miscellaneous equipment that adopts this type of cabin ball simultaneously.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110278604 CN102426389B (en) | 2011-09-19 | 2011-09-19 | Portable Small Seabed Seismograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110278604 CN102426389B (en) | 2011-09-19 | 2011-09-19 | Portable Small Seabed Seismograph |
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| Publication Number | Publication Date |
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| CN102426389A CN102426389A (en) | 2012-04-25 |
| CN102426389B true CN102426389B (en) | 2013-02-06 |
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| CN 201110278604 Expired - Fee Related CN102426389B (en) | 2011-09-19 | 2011-09-19 | Portable Small Seabed Seismograph |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN105911581B (en) * | 2016-04-05 | 2019-10-18 | 中国科学院南海海洋研究所 | A base observation platform, seabed relative geodetic device and system |
| CN106886048B (en) * | 2017-04-07 | 2019-07-02 | 中国科学院地质与地球物理研究所 | A combined submarine seismic acquisition node and using method thereof |
| CN108828328B (en) * | 2018-04-27 | 2023-11-28 | 中国科学院地质与地球物理研究所 | Portable three-component submarine electric field meter |
| CN110850475B (en) * | 2019-10-17 | 2024-04-09 | 北京港震科技股份有限公司 | Large loop leveling device |
| CN119023185B (en) * | 2024-10-28 | 2025-01-28 | 江苏省地震局 | Platform vibration monitoring system and method based on offshore engineering |
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