CN113552634A - Chain type submarine earthquake monitoring device - Google Patents
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- CN113552634A CN113552634A CN202110767907.0A CN202110767907A CN113552634A CN 113552634 A CN113552634 A CN 113552634A CN 202110767907 A CN202110767907 A CN 202110767907A CN 113552634 A CN113552634 A CN 113552634A
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- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V1/3808—Seismic data acquisition, e.g. survey design
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V1/3843—Deployment of seismic devices, e.g. of streamers
- G01V1/3852—Deployment of seismic devices, e.g. of streamers to the seabed
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Abstract
The invention relates to the technical field of ocean exploration, in particular to a chain type ocean bottom earthquake monitoring device which comprises more than two earthquake detection units, wherein all the earthquake detection units are connected in series to form a monitoring chain, and adjacent earthquake detection units are connected through an outer photoelectric composite cable.
Description
Technical Field
The invention relates to the technical field of ocean exploration, in particular to a chain type ocean bottom earthquake monitoring device.
Background
The ocean bottom seismograph is an instrument which is placed on the ocean bottom and used for natural earthquake or artificial earthquake monitoring. The Yongyu et al discloses a high-frequency ocean bottom digital seismograph ZL200410101868.7, which is provided with a recovery device and a sink-and-couple-added spherical seismograph, a similar 7-channel multifunctional ocean bottom seismograph is obtained in 2011, and a similar low-power-consumption broadband single-cabin spherical ocean bottom seismograph is provided in 2017. Manouzhao et al disclose a wide band ocean bottom seismograph 200910093585.5, also a spherical seismograph with recovery and heave coupling. Most of the ocean bottom seismographs disclosed or in use are such self-contained ocean bottom seismographs that are placed on the ocean bottom. With the development of marine seismic monitoring, an online seismograph suitable for connection of a submarine observation network is required to be solved, and meanwhile, embedment of the seismograph in sediments is required to be solved, so that noise is reduced, and towing damage is prevented. Yan et al propose a self-burying type ocean bottom seismograph 201811024588.9, which installs the seismometer in the drill bit, and the drill bit is screwed into the ocean bottom sediment under the drive of the drive assembly, thus effectively reducing the influence of the ocean bottom flow on the seismometer, reducing the periodic low frequency noise of the long gravity wave, and improving the data quality, especially the data quality of the horizontal component. Although the self-buried ocean bottom seismograph can reduce noise to a certain degree, the self-buried ocean bottom seismograph needs a drill bit machine, is shallow in buried depth, is not an online seismograph, and is not suitable for formation of arrays.
Disclosure of Invention
The invention aims to provide a high-performance submarine earthquake monitoring device.
The technical purpose of the invention is realized by the following technical scheme: comprises a seismic detection unit, the seismic detection unit comprises an instrument bin and a left conversion bin and a right conversion bin which are respectively connected with the left end and the right end of the instrument bin, the left conversion bin, the right conversion bin and the instrument bin are spliced into a detection bin body structure, the instrument bin is internally provided with an earthquake monitoring sensor, a left first photoelectric connector and a left second photoelectric connector are respectively arranged at the left outlet and the right outlet of the left conversion bin, a right first photoelectric connector and a right second photoelectric connector are respectively arranged at the right outlet and the left outlet of the right conversion bin, the left side of the left first photoelectric connector and the right side of the right first photoelectric connector are respectively connected with an outer photoelectric composite cable, an inner rotary connection photoelectric composite cable is connected between the left first photoelectric connector and the left second photoelectric connector and between the right first photoelectric connector and the right second photoelectric connector respectively.
Preferably, the rigidity of the left first optical-electrical connector and the right first optical-electrical connector is greater than the rigidity of the outer optical-electrical composite cable.
Preferably, the instrument bin is cylindrical and axially extends in the left-right direction, the left conversion bin and the right conversion bin are frustum-shaped bin bodies axially in the left-right direction, the outer diameter of the left conversion bin is gradually reduced from right to left, the outer diameter of the right conversion bin is gradually reduced from left to right, the left conversion bin is communicated from left to right to form a frustum-shaped left inner space, and the right conversion bin is communicated from left to right to form a frustum-shaped right inner space.
Preferably, the left first photoelectric connector is fixed at the left outlet of the left conversion bin, the left second photoelectric connector is fixed at the right side of the instrument bin and extends into the left inner space, the right first photoelectric connector is fixed at the right outlet of the right conversion bin, and the right second photoelectric connector is fixed at the left side of the instrument bin and extends into the right inner space.
Preferably, the instrument bin comprises an outer sealed bin, the outer sealed bin comprises an outer barrel body axially arranged in the left-right direction, and a left sealing cover and a right sealing cover which are hermetically assembled at outlets on the left side and the right side of the outer barrel body, a sub sealed bin is further arranged in the outer sealed bin, and the seismic monitoring sensor is mounted in the sub sealed bin.
Preferably, a gap is formed between the outer sealed cabin and is filled with a liquid couplant.
Preferably, the sub-closed bin is provided with a balancing weight.
Preferably, the seismic sensor is mounted on the upper side of the counterweight.
Preferably, the weight member extends in the left-right direction and has a flat mounting surface on the upper surface.
Preferably, a cross section of the weight member perpendicular to the axial direction is semicircular.
A chain type seabed earthquake monitoring device comprises more than two earthquake detection units, all the earthquake detection units are connected in series to form a monitoring chain, and adjacent earthquake detection units are connected through an outer photoelectric composite cable.
Preferably, the instrument bin is internally provided with a seismic monitoring sensor, a multi-channel data acquisition module, a power supply module, a network communication module, an attitude monitoring module and an attitude adjusting module.
Preferably, the seismic sensors are three-component seismic sensors, the components of the three-component seismic sensors are perpendicular to each other at 90 degrees, and the seismic sensors are wide-band sensors.
Preferably, all the seismic acquisition units are arranged in a straight line.
Preferably, the left-most seismic acquisition unit also has an outer composite optical cable on the left side and is connected to the switch, and the right-most seismic acquisition unit also has an outer composite optical cable on the right side and is electrically connected to the switch.
Preferably, the seismic detection unit comprises an instrument bin and a left conversion bin and a right conversion bin which are respectively connected with the left end and the right end of the instrument bin.
Preferably, the size of the left conversion bin is gradually reduced from right to left, the size of the right conversion bin is gradually reduced from left to right, and the left conversion bin, the right conversion bin and the instrument bin are spliced into a spindle-shaped structure.
Preferably, a balancing weight close to the bottom is arranged in the instrument bin, and the seismic monitoring sensor, the multi-channel data acquisition module, the power supply module, the network communication module, the attitude monitoring module and the attitude adjusting module are all arranged on the upper portion of the balancing weight.
Preferably, the outer photoelectric composite cable between adjacent seismic detection units is horizontal and is higher than the bottom of the instrument bin.
Preferably, a plurality of heightening protective sleeves for allowing the outer photoelectric composite cables to penetrate through and support the outer photoelectric composite cables are sleeved on the outer photoelectric composite cables between the adjacent earthquake detection units.
The invention has the beneficial effects that: aiming at the defects of the prior art, the working experience of the applicant in the aspect of development of observation nodes of the submarine observation network is combined, and aiming at the characteristics of wide offshore land frames, strong damage to submarine fishery activities and the like in China, a novel submarine seismic monitoring device and a novel testing method are provided, so that the device can be used for realizing series connection and array combination of a plurality of devices, is suitable for a deeply buried seismic monitoring method, and provides a related device for high-precision, high-signal-to-noise ratio and high-safety online seismic monitoring of the submarine in China.
According to the previous researches, 85% of global natural earthquakes occur on the seabed, and the seabed earthquakes are crustal deformation events caused by the movement of deep seabed structures and are disaster events frequently occurring in the nature. Meanwhile, large-energy activities such as human explosions, sea landslides, sea volcanoes and the like can also generate sea bottom vibration events similar to natural earthquakes. The occurrence of large, small and micro earthquakes on the seabed is a source of possible fatal disasters to human beings. Since the ocean bottom earthquake occurs on the ocean bottom and is usually far away from the land, the high-precision monitoring of the air depth information such as the position, the depth, the time and the like of the earthquake becomes difficult, and especially for small microseisms below 3 grades, the land earthquake stations can be lack of monitoring. For the vibration safety evaluation of ocean engineering, a proper device is also lacked for long-term and high-density array monitoring. The existing submarine seismic device is basically applied to short-term marine investigation and is directly installed on the surface of the seabed, natural noise such as tide and the like, noise of a surface ship and underwater targets cause low signal identification degree, and meanwhile, the existing submarine seismic device is easily damaged by underwater fishery activities. The device of the application can better solve the problems.
The ocean bottom earthquake monitoring device can be used independently, and can also be connected in series to form a chain type ocean bottom earthquake monitoring device for use. The single submarine earthquake monitoring device is a tubular or rope structure, is not easy to receive interference when being laid on the seabed, has extremely strong anti-interference capability, has better stability after being connected in series, and has great promotion on the reliability of data by realizing the monitoring of a plurality of positions.
Drawings
FIG. 1 is a schematic perspective view of a chain type ocean bottom seismic monitoring apparatus according to example 2;
FIG. 2 is a schematic perspective view of the single ocean bottom seismic monitoring apparatus of FIG. 1 with the outer barrel removed;
FIG. 3 is a schematic perspective view of the structure of FIG. 2 with the inner barrel 101 removed;
FIG. 4 is a cross-sectional view of the top view of the single ocean bottom seismic monitoring unit of FIG. 1 with the top half broken away;
FIG. 5 is a schematic perspective view of the structure of FIG. 1 with a raised protective sleeve;
FIG. 6 is a system diagram of a chain type ocean bottom seismic monitoring device in the embodiment 2 in the use of an ocean bottom arrangement.
Detailed Description
The following specific examples are given by way of illustration only and not by way of limitation, and it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made in the examples without inventive faculty, and yet still be protected by the scope of the claims.
Embodiment 1, as shown in fig. 1 to 6, an ocean bottom earthquake monitoring device is a horizontal structure, and includes an earthquake detection unit 1, where the earthquake detection unit 1 includes an instrument bin 11, and a left conversion bin 12 and a right conversion bin 13 connected to left and right ends of the instrument bin, respectively, the left conversion bin 12 and the right conversion bin 13 are spliced with the instrument bin 11 to form a detection bin body structure, the instrument bin 11 has an earthquake monitoring sensor 4 therein, and the left conversion bin 12 and the right conversion bin 13 are not only used as a transfer station for subsequent optical cable conversion, but also are used for further improving and protecting the structural stability of the entire monitoring device, so as to ensure the balance of structures on left and right sides of the instrument bin 11.
Further, a left first optical electrical connector 121 and a left second optical electrical connector 122 are respectively disposed at the left outlet and the right outlet of the left conversion bin 12, a right first optical electrical connector 131 and a right second optical electrical connector 132 are respectively disposed at the right outlet and the left outlet of the right conversion bin 13, and these optical electrical connectors can all adopt the existing waterproof connector of a strip structure extending in the left-right direction.
Furthermore, the left side of the left first optical electrical connector 121 and the right side of the right first optical electrical connector 131 are connected to the outer composite optical cable 2, and the outer composite optical cable 2 may be used for charging, communication, and the like, and may be an existing mature optical cable.
The left second opto-electrical connector 122 and the right second opto-electrical connector 132 are further electrically connected to the power supply module and the communication module of the instrument chamber 11 by wires. Of course, the wireless charging module and the wireless communication module can be plugged on the right side of the left second optical electrical connector 122 and the left side of the right second optical electrical connector 132 to be paired with the corresponding modules inside the instrument chamber 11. These are conventional opto-electronic techniques and will not be described in detail here.
And an inner-switch optical composite cable 22 is connected between the left first optical electrical connector 121 and the left second optical electrical connector 122, and between the right first optical electrical connector 131 and the right second optical electrical connector 132, respectively. The inner transition optical composite cable 22 may also be implemented with existing, relatively mature optical cables. The purpose of this kind of relay lies in the optimization of stress point, can be with the help of the support of the first optical electrical connector 121 of the said left and right first optical electrical connector 131 and the structure of left conversion storehouse 12 and right conversion storehouse 13 itself will be to the pulling force of optical cable more optimization, also be in order to let in outer photoelectric composite cable 2 erect in the instrument storehouse left and right sides simultaneously, because instrument storehouse 11 has the height from top to bottom, outer photoelectric composite cable 2 is preferably set up in instrument storehouse 11 upper and lower intermediate position, so this kind of structure has effectively guaranteed the support of optical cable.
Among the detection device of above-mentioned design, structurally design better for the device is more reliable at the mode of lying of seabed, and the stability of structure itself also promotes, and the left and right sides homoenergetic enough is used for power supply communication, and more importantly, the monitoring devices of this kind of structure can carry out the series connection and use, and the scope of suitability and application is wider, does benefit to the use of various environment more, will discuss further later.
Preferably, the rigidity of the left first optical electrical connector 121 and the right first optical electrical connector 131 is greater than the rigidity of the outer optical electrical composite cable 2.
The instrument bin 11 is cylindrical and axially extends in the left-right direction, the instrument bin 11 is a closed bin which is closed left and right, the left conversion bin 12 and the right conversion bin 13 are two protection bin covers on the left and right of the instrument bin 11, the left conversion bin 12 and the right conversion bin 13 are frustum-shaped bin bodies which are axially arranged in the left-right direction, the outer diameter of the left conversion bin 12 is gradually reduced from right to left, the outer diameter of the right conversion bin 13 is gradually reduced from left to right, a left inner space 120 of a frustum shape is formed by penetrating the left and right of the inside of the left conversion bin 12, the space size of the left inner space 120 is gradually reduced from right to left, a right inner space 130 of the frustum shape is formed by penetrating the left and right of the inside of the right conversion bin 13, and the space size of the right inner space 130 is gradually reduced from left to right. The first left photoelectric connector 121 is fixed at the left outlet of the left conversion bin 12 and can be installed at the left outlet of the left conversion bin 12 in a screwing mode, a thread groove is formed in the left outlet of the left conversion bin 12 and the contact part of the first left photoelectric connector 121, and the existing fixing mode can be adopted to fix the first left photoelectric connector, so that the outer photoelectric composite cable 2 is conveniently spliced at the outer side. The left second optical connector 122 is fixed to the right side of the instrument chamber 11 and extends into the left inner space 120, and the left second optical connector 122 may be fixed to a left sealing cover 112, which will be described later, in a conventional connector mounting manner. The right first opto-electrical connector 131 is fixed at the right outlet of the right switching chamber 13, in the manner described above. The right second optical connector 132 is fixed to the left side of the instrument chamber 11 and extends into the right inner space 130, and the right second optical connector 132 may be fixed to a right sealing cover 113 described later. The left conversion bin 12, the right conversion bin 13 and the instrument bin 11 can be made of waterproof materials such as stainless steel.
Further, the instrument bin 11 includes an outer sealed bin, the outer sealed bin includes an outer cylinder 111 axially in the left-right direction and a left sealed cover 112 and a right sealed cover 113 which are assembled at the left and right side outlets of the outer cylinder 111 in a sealing manner, a sub sealed bin is further arranged in the outer sealed bin, and the seismic monitoring sensor 4 is installed in the sub sealed bin. The sub-closed bin comprises an inner cylinder body 101 axially arranged in the left-right direction, and a left inner cover 102 and a right inner cover 103 which are closely assembled at the outlets on the left side and the right side of the inner cylinder body 101. Namely, the outer sealed cabin and the sub sealed cabin are both cylindrical horizontal structures.
Further, a gap is formed between the outer sealing cabin and is filled with a liquid coupling agent, and the liquid coupling agent can preferably adopt silicone grease.
Preferably, the sub-closed bin is provided with a balancing weight 1100, the balancing weight 1100 is preferably located at the lower half part of the sub-closed bin, the balancing weight 1100 can be of a cast iron block structure and the like, and can also be fixed in the sub-closed bin in a screwing mode, mainly for ensuring the stability of the device, and the weight is increased. And the seismic sensor 4 is installed at the upper side of the weight block 1100.
The weight 1100 extends in the left-right direction and has a flat mounting surface 11000 formed on the upper surface. The flatness of the upper side surface is ensured as much as possible. On this basis, it can be optimized that the cross section of the weight 1100 perpendicular to the axial direction is in a semicircular shape, that is, the weight 1100 is in a horizontal semi-cylindrical structure.
The submarine earthquake monitoring device has a good submarine earthquake detecting effect, and has the advantages that through the lying structural design, the submarine is buried and has a better using effect, the interference influence is small, the mechanical supporting structure is reduced, the signal attenuation is less, and the monitoring data is more accurate.
Example 2, as shown in fig. 1 to 6, a chain type ocean bottom seismic monitoring device, which can adopt all the structures of example 1, is a more optimized application device derived from example 1, and is suitable for being used in sea areas with more different environments.
The method specifically comprises the following steps: including more than two seismic acquisition unit 1, all seismic acquisition unit 1 establish ties and form the monitoring chain, connect through outer photoelectric composite cable 2 between the adjacent seismic acquisition unit 1, through the mode of this kind of establishing ties, and utilize the linearity of outer photoelectric composite cable 2 to carry out the arrangement, each position seismic acquisition unit 1 can both monitor and can carry out the shared transportation of data through outer photoelectric composite cable 2, not only constitute stable in structure's monitoring chain system, but also can realize the sharing and the transportation of data, can be suitable for seabed monitoring and data acquisition on a wider range, the reliability is also higher.
The instrument cabin 11 is internally provided with a seismic monitoring sensor 4, a multi-channel data acquisition module 44, a power supply module, a network communication module, an attitude monitoring module and an attitude adjusting module. The modules and sensors may be implemented using existing equipment. Preferably, the seismic sensors 4 may be three-component seismic sensors, each component being perpendicular to each other at 90 degrees, and the seismic sensors 4 may be wide-band sensors.
Preferably, all the seismic acquisition units 1 are arranged in a straight line, and the structure can be used in a certain area, and can also be used around a bend if the structure is to be used in a larger area, so that a monitoring array with a bending shape is formed. Further, the left side of the leftmost seismic-sensing unit 1 also has the outer photoelectric composite cable 2 and is connected to the exchange, and the right side of the rightmost seismic-sensing unit 1 also has the outer photoelectric composite cable 2 and is electrically connected to the exchange. The switch can be connected to a computer and other equipment for control.
Embodiment 1 also mentions that the seismic detection unit 1 includes an instrument bin 11, and a left conversion bin 12 and a right conversion bin 13 connected to the left and right ends of the instrument bin, respectively, and the radial dimension of the left conversion bin 12 decreases gradually from right to left, and the radial dimension of the right conversion bin 13 decreases gradually from left to right, and the left conversion bin 12 and the right conversion bin 13 are spliced with the instrument bin 11 to form a spindle-shaped structure, that is, a structure other than a frustum-shaped structure may be adopted, mainly to form a spindle-shaped structure, so as to form a more stable and reliable structure.
Still specifically, a balancing weight 1100 close to the bottom is arranged in the instrument bin 11, and the seismic monitoring sensor 4, the multi-channel data acquisition module, the power supply module, the network communication module, the attitude monitoring module and the attitude adjusting module are all arranged on the upper portion of the balancing weight 1100, so that the reliability of the structure fixation is ensured as much as possible, and the interference between the structures is reduced.
More importantly, in the chain structure, it is further preferable that the outer photoelectric composite cable 2 between the adjacent seismic detection units 1 is horizontal and higher than the bottom of the instrument chamber 11.
A plurality of heightening protective sleeves t for enabling the outer photoelectric composite cables 2 to penetrate through and support the outer photoelectric composite cables 2 are sleeved on the outer photoelectric composite cables 2 between the adjacent earthquake detection units 1. The heightening protective sleeve t is used for guaranteeing the levelness of the outer photoelectric composite cable 2 and guaranteeing the height consistency of the whole outer photoelectric composite cable 2, inner flexible sleeves similar to rubber sleeves are preferably nested inside the heightening protective sleeve t, the outer photoelectric composite cable 2 preferably penetrates through the inner flexible sleeves, and the heightening protective sleeve t can be made of metal anti-corrosion materials.
In the example, the device comprises a cylindrical instrument bin which is processed by adopting an anticorrosive vibration transmission material; the sealing covers at two sides of the instrument bin are respectively connected with the left and right conversion bins, one end of each conversion bin is in butt joint with the instrument bin, the other end of each conversion bin is provided with an extensible outer photoelectric composite cable 2, and the other end of each conversion bin can be connected with the next conversion bin. A plurality of instrument bins and conversion bins can be connected into an array to construct various forms, and the array can be embedded into a seabed sediment layer to form an effective noise-resistant area array monitoring method.
The single earthquake detection unit structure is characterized in that the instrument bin with two open ends is connected with the two conversion bins, the butt joint parts of the instrument bin and the conversion bins can be fixedly connected through bolts, for example, the left conversion bin and the left sealing cover are connected through holes in the left and right directions through bolts, so that the single earthquake detection unit is in a spindle-shaped structure and is convenient to lay and bury at the seabed.
The instrument bin and the conversion bin are communicated by adopting parallel double optical cables, so that stable signal transmission can be ensured when a plurality of devices are connected in series, and the communication of a link is not influenced by each device.
Monitoring by ocean bottom seismic:
high safety: the novel ocean bottom earthquake monitoring device can be embedded in ocean bottom sediment, can prevent human or underwater biological activities from damaging the ocean bottom sediment compared with an instrument on the surface of the ocean bottom, and has higher safety;
high precision: the ocean bottom earthquake monitoring device can be used for a plurality of sets of serial arrays which are arranged into different intervals and different forms, and can obtain the ocean bottom earthquake information with higher precision through multi-point monitoring and data post-processing. Meanwhile, the device is embedded in submarine sediments, and the sediments block ocean noise, so that the signal-to-noise ratio of monitoring data can be improved, and useful information can be identified with higher accuracy;
high convenience: the novel ocean bottom earthquake monitoring device adopts a modularized design and an integral spindle-shaped design, can conveniently form arrays, and can be conveniently installed on the sea by using the current mature offshore engineering implementation technology.
The invention is suitable for monitoring and researching the submarine earthquake, is favorable for reducing the environmental noise influence in the sea surface and the sea water and improving the monitoring signal quality due to the embedding and area array method, and is particularly suitable for shallow sea sedimentary area and submarine microseismic monitoring.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A chain ocean bottom seismic monitoring device is characterized in that: the monitoring system comprises more than two earthquake detection units (1), wherein all the earthquake detection units (1) are connected in series to form a monitoring chain, and adjacent earthquake detection units (1) are connected through an outer photoelectric composite cable (2).
2. The chain type seafloor seismic monitoring device of claim 1, wherein: the earthquake monitoring instrument is characterized in that an earthquake monitoring sensor (4), a multi-channel data acquisition module, a power supply module, a network communication module, an attitude monitoring module and an attitude adjusting module are arranged in the instrument bin (11).
3. A chain type seafloor seismic monitoring device as claimed in claim 2, wherein: the earthquake monitoring sensor (4) is a three-component earthquake monitoring sensor, components of the earthquake monitoring sensor are perpendicular to each other at 90 degrees, and the earthquake monitoring sensor (4) is a broadband sensor.
4. The chain type seafloor seismic monitoring device of claim 1, wherein: all the earthquake detection units (1) are arranged in a straight line shape from side to side.
5. The chain type seafloor seismic monitoring device of claim 4, wherein: the left side of the leftmost earthquake detection unit (1) is also provided with an outer photoelectric composite cable (2) and connected to the switch, and the right side of the rightmost earthquake detection unit (1) is also provided with the outer photoelectric composite cable (2) and electrically connected to the switch.
6. The chain type seafloor seismic monitoring device of claim 1, wherein: the earthquake detection unit (1) comprises an instrument bin (11), and a left conversion bin (12) and a right conversion bin (13) which are connected to the left end and the right end of the instrument bin respectively.
7. The chain type seafloor seismic monitoring device of claim 6, wherein: the size of the left conversion bin (12) is gradually reduced from right to left, the size of the right conversion bin (13) is gradually reduced from left to right, and the left conversion bin (12), the right conversion bin (13) and the instrument bin (11) are spliced into a spindle-shaped structure.
8. A chain type seafloor seismic monitoring device as claimed in claim 2, wherein: a balancing weight (1100) close to the bottom is arranged in the instrument bin (11), and the seismic monitoring sensor (4), the multi-channel data acquisition module, the power supply module, the network communication module, the attitude monitoring module and the attitude adjusting module are all arranged on the upper portion of the balancing weight (1100).
9. The chain type seafloor seismic monitoring device of claim 1, wherein: the outer photoelectric composite cable (2) between the adjacent earthquake detection units (1) is horizontal and higher than the bottom of the instrument bin (11).
10. A chain type seafloor seismic monitoring device as claimed in claim 9, wherein: a plurality of heightening protective sleeves (t) for enabling the outer photoelectric composite cables (2) to penetrate through and support the outer photoelectric composite cables (2) are sleeved on the outer photoelectric composite cables (2) between the adjacent earthquake detection units (1).
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| CN202110767907.0A CN113552634B (en) | 2021-07-07 | 2021-07-07 | Chain type submarine earthquake monitoring device |
| PCT/CN2021/141171 WO2023279675A1 (en) | 2021-07-07 | 2021-12-24 | Chain-type submarine seismic monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023279675A1 (en) * | 2021-07-07 | 2023-01-12 | 自然资源部第二海洋研究所 | Chain-type submarine seismic monitoring device |
| CN115817730A (en) * | 2021-12-28 | 2023-03-21 | 自然资源部第一海洋研究所 | Portable wide dragon current meter supporting marine observation device |
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| WO2023279675A1 (en) * | 2021-07-07 | 2023-01-12 | 自然资源部第二海洋研究所 | Chain-type submarine seismic monitoring device |
| CN115817730A (en) * | 2021-12-28 | 2023-03-21 | 自然资源部第一海洋研究所 | Portable wide dragon current meter supporting marine observation device |
Also Published As
| Publication number | Publication date |
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| CN113552634B (en) | 2022-07-19 |
| WO2023279675A1 (en) | 2023-01-12 |
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Application publication date: 20211026 Assignee: Hangzhou Hanlu Geophysical Exploration Co.,Ltd. Assignor: SECOND INSTITUTE OF OCEANOGRAPHY, MNR Contract record no.: X2023330000410 Denomination of invention: A Chain Submarine earthquake Monitoring Device Granted publication date: 20220719 License type: Exclusive License Record date: 20230718 |