A deep-sea hydrothermal vent location survey device and method based on a submersible

Abstract

The present invention belongs to the technical field of seabed heat source detection, and in particular to a deep-sea hydrothermal vent location survey device and method based on a submersible. In view of the problem that the heat source cannot be sampled from multiple directions when conducting heat source survey in the prior art, the following scheme is proposed, including a main cabin with an upward opening and an overall barrel-shaped structure, a connector is fixed between the outer wall of the main cabin and the outer wall of the head of the submersible, and a transfer column head is inserted on the side of the circumferential outer wall of the main cabin away from the connector, and the circumferential outer wall of the transfer column head is fixed with two fixed tubes one and two extending to the upper and lower positions respectively, and a closed convex cover is arranged on the top of the main cabin. The extended detection cabin in the present invention will detect the heat source position at the first time, and then the samples at different positions will be sucked according to the needs. The power of the suction is located above the suction barrel in the main cabin, so the required amount can be extracted to avoid the over-pumping phenomenon caused by excessive water pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of seabed heat source detection, and in particular to a submersible-based deep-sea hydrothermal vent location survey device and method. Background Art

[0002] The study of hydrothermal areas has both scientific and economic significance, and the discovery of hydrothermal vents is the basis of research. Seafloor hydrothermal activities are mainly distributed in mid-ocean ridges and back-arc basins, and are also partially located in volcanic arcs and intraplate volcanoes. Judging from the hydrothermal areas or abnormal areas discovered so far, the distribution of seafloor hydrothermal is extremely uneven, so the exploration of the location of deep-sea hydrothermal vents has become particularly meaningful.

[0003] After searching, the technical means of detecting hydrothermal activity areas are summarized into two categories: close-range detection and cruise survey. Close-range detection uses deep-towed or underwater vehicles carrying CTD, MAPR, chemical detection system, side-scan sonar, etc. to conduct detailed detection of the target area; compared with the two major detection methods, the advantage of close-range detection is high detection accuracy, so this detection method has been used, but nowadays, when detecting heat sources, it is difficult to perform multi-directional sampling due to the existence of deep-sea pressure, so it is impossible to conduct detailed and accurate research on the specific substances and contents contained in the heat source in the later stage. Therefore, we propose a new type of survey device that can sample heat sources at multiple levels. Summary of the invention

[0004] In view of the technical problem in the prior art that the heat source cannot be sampled from multiple directions during heat source survey, the present invention adopts the following technical solution:

[0005] A deep-sea hydrothermal vent location survey device based on a submersible, comprising a main cabin with an opening upward and an overall barrel-shaped structure, a connecting piece is fixed between the outer wall of the main cabin and the outer wall of the head of the submersible, and a transfer column is inserted into the side of the circumferential outer wall of the main cabin away from the connecting piece, and the circumferential outer wall of the transfer column is fixed with two fixed tubes one and two extending toward upper and lower positions respectively, and a closed convex cover is arranged on the top of the main cabin; a first thermometer is fixed on the top of the fixed tube one, and an inspection cabin is arranged at the bottom end of the fixed tube two; the inspection cabin is an overall trumpet-shaped structure opening downward, and a concave pressure-resistant glass recessed inwardly is sealed and embedded at the bottom opening of the inspection cabin, and a camera is fixed to the top inner wall of the inspection cabin; an inclined A sealed bearing is provided, and an arc-shaped suction tube bent toward the bottom edge of the detection cabin is slidably inserted in the sealed bearing, and the other end of the arc-shaped suction tube is located near the bottom end of the fixed tube two, and an inner delivery tube for sampling is inserted inside the fixed tube two, and a pressure-resistant hose and a connecting hose are fixed at both ends of the inner delivery tube; a sampling device is provided in the middle of the bottom of the main cabin, and the sampling device includes a rotating support plate rotatably connected to the main cabin near the bottom, a plurality of suction barrels equidistantly distributed are fixed on the top of the rotating support plate, an externally threaded tube passing through the rotating support plate is provided in the middle of the bottom of the suction barrel, and a telescopic nozzle aligned with the bottom end of the externally threaded tube is fixed at the bottom of the main cabin near the circumferential edge; and the end of the telescopic nozzle away from the externally threaded tube is connected to the other end of the connecting hose.

[0006] A further configuration of the present invention is that a connecting pipe frame for connecting fixed pipe 2 and the detection cabin is fixed near the top edge of the circumferential outer wall of the detection cabin, and a strip-shaped through-hole for the pressure-resistant hose to pass through is opened in the middle of the connecting pipe frame on the outer wall of the detection cabin; a fixed clamp is fixed near the bottom end of the circumferential outer wall of the detection cabin, and thermometer 2 is embedded on the side of the fixed clamp away from the detection cabin.

[0007] A further configuration of the present invention is that a mounting hole is opened in the middle of the top of the detection cabin, and a pressure gauge is embedded in the mounting hole; the lower surface of the main cabin is fixed with criss-cross reinforcing ribs to increase the pressure resistance effect. The pressure gauge can be used to detect the pressure difference between the inside and outside of the detection cabin, and then facilitate the pressurization of the inside of the device so that the device can operate normally and prevent components from being damaged by water pressure.

[0008] A further configuration of the present invention is that a cantilever rod extending horizontally toward the middle of the concave pressure-resistant glass is inserted at the bottom of the fixed card block, and a colored ribbon is fixed to the end of the cantilever rod away from the fixed card block, and the surface of the colored ribbon is coated with waterproof fluorescent powder; the fixed card block is located directly below the fixed tube 2; during the inspection process, the colored ribbon will extend backward as the submersible slowly moves forward, and once it approaches the hydrothermal vent, the water flow near the colored ribbon becomes turbulent, which makes it easier for the camera to capture and resolve it.

[0009] A further configuration of the present invention is that an annular groove is opened on the circumferential inner wall of the detection cabin near the bottom opening, and a sealing ring is sleeved on the circumferential outer wall of the concave pressure-resistant glass, and the sealing ring is fixed in the annular groove; the pressure-resistant sealing effect of the concave pressure-resistant glass after diving into the deep sea is improved.

[0010] A further configuration of the present invention is that two symmetrical sliding bearings are fixed to the circumferential inner wall of the detection cabin, and the same long shaft rod is rotatably connected between the two sliding bearings, a connecting pull rod is fixed in the middle of the long shaft rod, and the other end of the connecting pull rod is welded and fixed to the outer wall of the arc suction pipe near one end of the pressure-resistant hose; a rubber plug is fixed to the side of the outer wall of the detection cabin away from the fixed block, and a columnar block matching the diameter of the pipe mouth of the rotated arc suction pipe is fixed to the upper surface of the rubber plug; by setting the rubber plug with the columnar block, the pipe mouth of the arc suction pipe can be temporarily blocked during the forward process to prevent debris from entering the arc suction pipe.

[0011] A further configuration of the present invention is that a worm gear is fixed near the middle of the circumferential outer wall of the long shaft rod; and a motor fixing hanger is fixed near the middle of the top of the detection cabin, and a servo motor is fixed to the bottom end of the motor fixing hanger by bolts, and a worm sleeve meshing with the worm gear is fixed to the top end of the output shaft of the servo motor; through the provided worm sleeve and servo motor, the pipe mouth of the arc-shaped suction pipe can be tightly pressed against the surface of the rubber plug during the forward movement, and the stability of the arc-shaped suction pipe during the suction process can be ensured.

[0012] A further configuration of the present invention is that the sampling device also includes a reduction motor fixed in the middle of the bottom of the main cabin, a three-claw spoke rod is fixed to the top of the output shaft of the reduction motor, and the three-claw spoke rod is an umbrella-shaped structure as a whole, and the three-claw spoke rod includes three support rods symmetrically distributed in the center, and the ends of the support rods away from the motor shaft of the reduction motor are fixed to the upper surface of the rotating support plate; the rotating support plate is located in the middle of the bottom of each suction bucket and a threaded hole is opened, and the bottom end of the threaded hole is chamfered; the size of the threaded hole is adapted to the size of the externally threaded tube; a spring baffle is fixed near the middle of the circumferential inner wall of the externally threaded tube, and a reset tension spring is fixed to the top of the spring baffle, and the reset spring A sealing cover block is fixed to the top of the tension spring, and the diameter of the sealing cover block is greater than or equal to the outer diameter of the external threaded tube; a piston plate is slidably connected to the circumferential inner wall of the suction barrel, and a vertical rack rod is fixed to the middle of the upper surface of the piston plate, and the circumferential outer wall of the rack rod is provided with right-angle teeth, and a rotary cover is fixed to the top opening of the suction barrel, and an anti-torsion bearing matching the diameter of the rack rod is embedded in the middle of the rotary cover; a fixed block is fixed to the inner wall of the main compartment near the top, and the fixed block is located above the adapter column head, a driving motor is fixed to the surface of the fixed block, and an intermittent gear meshing with the rack rod is fixed to the top of the output shaft of the driving motor; a counterweight is fixed to the rear side of the intermittent gear near the teeth.

[0013] A further configuration of the present invention is that the outer wall of the rack rod is provided with an anti-twist groove running through the upper and lower ends, and the inner wall of the anti-twist bearing is provided with a protrusion matched with the anti-twist groove; the telescopic nozzle includes an outer sleeve fixed to the inner wall of the bottom of the main cabin, and the top of the outer sleeve is slidably sleeved with a round-headed nozzle, the top of the round-headed nozzle is provided with a spherical head, and three spring baffles symmetrically distributed near the top of the circumferential outer wall of the round-headed nozzle are fixed, and a compression spring is fixed between the lower surface of the spring baffle and the top of the outer sleeve, and a vertical stepped injection hole is opened in the middle of the round-headed nozzle; the bottom end of the stepped injection hole is connected to a connecting hose; by providing a round-headed nozzle with a spherical head, the threaded hole can be switched freely, and then different suction barrels can be docked.

[0014] A method for surveying the location of deep-sea hydrothermal vents based on a submersible comprises the following steps:

[0015] S1: Fix the main cabin of the device to the outer wall of the head of the submersible through the connector, and then select the fixed pipe 1 and the fixed pipe 2 of appropriate length according to the depth of the area and the amount of seabed debris. If the seabed conditions are clear, you can choose a longer one; after confirming that the inspection cabin and the main cabin and each seal are well sealed, you can go into the water;

[0016] S2: When the submersible carries the device forward to search, the inspection cabin takes the lead and conducts inspections, cooperating with the camera and ribbons in the inspection cabin; during the normal inspection process, the ribbons will extend backwards in waves as the submersible slowly moves forward. Once it approaches the hydrothermal vent, the water flow near the ribbons becomes turbulent, which in turn causes the ribbons to move irregularly; this makes it easier for the camera to capture and distinguish;

[0017] At the same time, the second thermometer set on the outer wall of the detection cabin cooperates with the first thermometer at the top of the device. During normal inspections, the temperature of the second thermometer located deeper is lower than that of the first thermometer. Once a heat source is detected, not only will the temperature difference become smaller, but the temperature of the second thermometer at the bottom will even be much higher than that of the first thermometer at the top. At this time, the existence of a heat source can be verified from another aspect.

[0018] S3: Sampling can be carried out at this time. Before sampling, ensure that the threaded hole at the bottom of the empty suction barrel is connected to the top of the telescopic nozzle, and then start the servo motor to make the mouth of the closed arc suction pipe leave the rubber plug; then start the drive motor to drive the piston plate to operate for suction.

[0019] The beneficial effects of the present invention are:

[0020] 1. By setting up a rotating suction barrel, cooperating with the camera in the detection cabin and the arc-shaped suction tube, when the end of the submersible reaches the top of the hydrothermal vent first, the extended detection cabin will detect the heat source position at the first time, and then suck samples from different positions as needed. The suction power is located above the suction barrel in the main cabin, so it can be extracted according to the required amount to avoid over-pumping caused by excessive water pressure.

[0021] 2. By setting the second thermometer on the outer wall of the detection cabin in conjunction with the first thermometer at the top of the device, the temperature of the second thermometer located deeper during normal inspections is lower than that of the first thermometer. Once a heat source is detected, not only will the temperature difference become smaller, but the temperature of the second thermometer will even be much higher than that of the first thermometer. At this time, the existence of a heat source can be verified from another aspect.

[0022] 3. By setting an intermittent gear with a counterweight, the drive motor can be powered off when switching the position of the suction barrel. At this time, the smooth surface of the intermittent gear without teeth faces one side of the rack rod, which is conducive to the rotation of the rack rod in and out. When the new rack rod reaches the suction position, the drive motor is started again, and it can engage normally and then perform suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a submersible-based deep-sea hydrothermal vent location survey device proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the upward-looking stereoscopic structure of a deep-sea hydrothermal vent location survey device based on a submersible proposed by the present invention;

[0025] Figure 3 This is a schematic cross-sectional structural diagram of a detection cabin in a submersible-based deep-sea hydrothermal vent location survey device proposed by the present invention;

[0026] Figure 4 A schematic diagram of the structure of a submersible-based deep-sea hydrothermal vent location survey device during sampling proposed by the present invention;

[0027] Figure 5 A deep-sea hydrothermal vent location survey device based on a submersible proposed by the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 6 A schematic diagram of the explosion structure of a detection cabin of a submersible-based deep-sea hydrothermal vent location survey device proposed by the present invention;

[0029] Figure 7 A schematic diagram of the bottom structure of a rotating support plate in a submersible-based deep-sea hydrothermal vent location survey device proposed by the present invention;

[0030] Figure 8 A schematic diagram of the three-dimensional structure of a detection cabin in a submersible-based deep-sea hydrothermal vent location survey device proposed by the present invention;

[0031] Fig. 9 A schematic diagram of an explosion structure of a telescopic nozzle in a deep-sea hydrothermal vent location based on a submersible proposed by the present invention;

[0032] Fig.10 This is a schematic diagram of the rear structure of an intermittent drive gear in a deep-sea hydrothermal vent location based on a submersible proposed by the present invention;

[0033] Fig.11 A schematic diagram of the explosion structure of a rotating support plate in a deep-sea hydrothermal vent location based on a submersible proposed by the present invention.

[0034] In the figure: 1, main cabin; 2, connector; 3, convex cover; 4, first temperature detector; 5, fixed pipe 1; 6, adapter column; 7, fixed pipe 2; 8, arc suction pipe; 9, rubber plug; 10, detection cabin; 1001, strip perforation; 1002, pressure detector; 1003, motor fixing hanger; 11, fixed block; 12, reinforcing rib; 13, cantilever rod; 14, mounting hole; 15, ribbon; 16, concave pressure-resistant glass; 17, camera; 18, connecting rod; 19, sealed bearing; 20, inner conveying pipe; 21, pressure-resistant hose; 22, temperature detector 2 ; 23. Servo motor; 24. Long shaft rod; 25. Outer sleeve; 26. Round head nozzle; 2601. Stepped injection hole; 27. Reducer motor; 28. Rotating support plate; 2801. Threaded hole; 29. ​​Piston plate; 30. Suction barrel; 3001. Screw cover; 3002. Anti-torsion bearing; 31. Rack rod; 32. Three-claw spoke rod; 33. Intermittent gear; 3301. Counterweight; 34. Drive motor; 35. Fixed block; 36. External threaded pipe; 37. Reset tension spring; 38. Compression spring 1; 39. Connecting hose; 40. Sliding bearing; 41. Worm gear. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the present invention, reference is made to Figure 1-Figure 11A deep-sea hydrothermal vent location survey device based on a submersible comprises a main cabin 1 with an upward opening and an overall barrel-shaped structure, a connector 2 is fixed between the outer wall of the main cabin 1 and the outer wall of the head of the submersible, and a transfer column 6 is inserted into the side of the circumferential outer wall of the main cabin 1 away from the connector 2, and the circumferential outer wall of the transfer column 6 is fixed with two fixed pipes 1 5 and 7 extending to upper and lower positions respectively, and a closed convex cover 3 is arranged on the top of the main cabin 1; a first temperature detector 4 is fixed on the top of the fixed pipe 5, and the fixed pipe 7 is fixed on the top of the fixed pipe 5. The bottom end of the detection cabin 10 is provided with a detection cabin 10; the detection cabin 10 is in a trumpet-shaped structure with an opening downward, and a concave pressure-resistant glass 16 that is recessed inward is sealed and embedded at the bottom opening of the detection cabin 10, and a camera 17 is fixed to the top inner wall of the detection cabin 10; the top of the detection cabin 10 is embedded with an inclined sealed bearing 19, and an arc-shaped suction pipe 8 that is bent toward the bottom edge of the detection cabin 10 is slidably inserted in the sealed bearing 19, and the other end of the arc-shaped suction pipe 8 is located near the bottom end of the fixed pipe 7, and the interior of the fixed pipe 7 is interspersed with a sampling An inner delivery pipe 20, and a pressure-resistant hose 21 and a connecting hose 39 are fixed at both ends of the inner delivery pipe 20; a sampling device is arranged in the middle of the bottom of the main chamber 1, and the sampling device comprises a rotating support plate 28 rotatably connected to the main chamber 1 near the bottom, a plurality of suction barrels 30 equidistantly distributed are fixed on the top of the rotating support plate 28, an external threaded pipe 36 passing through the rotating support plate 28 is arranged in the middle of the bottom of the suction barrel 30, and a telescopic nozzle aligned with the bottom end of the external threaded pipe 36 is fixed near the circumferential edge of the bottom of the main chamber 1; and the telescopic nozzle One end away from the external threaded tube 36 is connected to the other end of the connecting hose 39; by setting a rotating suction barrel 30, cooperating with the camera 17 and the arc-shaped suction tube 8 in the detection cabin 10, when the end of the submersible first arrives above the hydrothermal vent, the extended detection cabin 10 will detect the heat source position at the first time, and then suck samples from different positions as needed. The suction power is located above the suction barrel 30 in the main cabin 1, so it can be extracted according to the required amount to avoid over-pumping caused by excessive water pressure.

[0037] In the present invention, a connecting pipe frame for connecting the fixed pipe 27 and the detection chamber 10 is fixed near the top edge of the circumferential outer wall of the detection chamber 10, and a strip through-hole 1001 for the pressure-resistant hose 21 to pass through is opened in the middle of the connecting pipe frame on the outer wall of the detection chamber 10; a fixed clamp 11 is fixed near the bottom end of the circumferential outer wall of the detection chamber 10, and a thermometer 22 is embedded on the side of the fixed clamp 11 away from the detection chamber 10; by setting the thermometer 22 on the outer wall of the detection chamber 10 and cooperating with the first thermometer 4 at the top of the device, the temperature of the thermometer 22 located deeper during normal inspections is lower than that of the first thermometer 4. Once a heat source is detected, not only will the temperature difference become smaller, but the temperature of the thermometer 22 will even be much higher than that of the first thermometer 4. At this time, the existence of a heat source here can be verified from another side.

[0038] Please refer to Figure 2-Figure 3 A mounting hole 14 is provided in the middle of the top of the detection cabin 10, and a pressure gauge 1002 is embedded in the mounting hole 14; criss-cross reinforcing ribs 12 are fixed to the lower surface of the main cabin 1 to increase the pressure resistance. The pressure gauge 1002 can be used to detect the pressure difference between the inside and outside of the detection cabin 10, and then to increase the pressure inside the device so that the device can operate normally and prevent components from being damaged by water pressure.

[0039] Please refer to Figure 3-Figure 4 A cantilever rod 13 extending horizontally toward the middle of the concave pressure-resistant glass 16 is inserted at the bottom of the fixed card block 11, and a colored ribbon 15 is fixed to the end of the cantilever rod 13 away from the fixed card block 11, and the surface of the colored ribbon 15 is coated with waterproof fluorescent powder; the fixed card block 11 is located directly below the fixed pipe 27; during the inspection process, the colored ribbon 15 will extend backward as the submersible slowly moves forward. Once it approaches the hydrothermal vent, the water flow near the colored ribbon 15 becomes turbulent, which makes it easier for the camera 17 to capture and distinguish it.

[0040] In the present invention, an annular groove is formed on the circumferential inner wall of the detection chamber 10 near the bottom opening, and a sealing ring is sleeved on the circumferential outer wall of the concave pressure-resistant glass 16, which is fixed in the annular groove, thereby improving the pressure-resistant sealing effect of the concave pressure-resistant glass 16 after diving into the deep sea.

[0041] Please refer to Figure 4 and Figure 6 Two symmetrical sliding bearings 40 are fixed to the circumferential inner wall of the detection cabin 10, and the same long shaft rod 24 is rotatably connected between the two sliding bearings 40, a connecting rod 18 is fixed in the middle of the long shaft rod 24, and the other end of the connecting rod 18 is welded and fixed to the outer wall of the arc suction pipe 8 at one end close to the pressure-resistant hose 21; a rubber plug 9 is fixed to the side of the outer wall of the detection cabin 10 away from the fixed block 11, and a columnar block matched with the diameter of the pipe mouth of the rotated arc suction pipe 8 is fixed on the upper surface of the rubber plug 9; by setting the rubber plug 9 with the columnar block, the pipe mouth of the arc suction pipe 8 can be temporarily blocked during the forward process to prevent debris from entering the arc suction pipe 8.

[0042] Please refer to Figure 4 and Figure 6 A worm gear 41 is fixed to the circumferential outer wall of the long shaft rod 24 near the middle; and a motor fixing hanger 1003 is fixed to the top of the detection cabin 10 near the middle, and a servo motor 23 is fixed to the bottom end of the motor fixing hanger 1003 by bolts, and a worm sleeve meshing with the worm gear 41 is fixed to the top end of the output shaft of the servo motor 23; through the provided worm sleeve and servo motor 23, the pipe mouth of the arc-shaped suction pipe 8 can be tightly pressed against the surface of the rubber plug 9 during the forward movement, and the stability of the arc-shaped suction pipe 8 can be ensured during the suction process.

[0043] Please refer to Figure 5 , Figure 7 , Fig. 9 and Fig.11 The sampling device also includes a reduction motor 27 fixed in the middle of the bottom of the main chamber 1, a three-claw spoke rod 32 is fixed to the top of the output shaft of the reduction motor 27, and the three-claw spoke rod 32 is an umbrella-shaped structure, the three-claw spoke rod 32 includes three support rods symmetrically distributed in the center, and the ends of the support rods away from the motor shaft of the reduction motor 27 are fixed to the upper surface of the rotating support plate 28; the rotating support plate 28 is located in the middle of the bottom of each suction barrel 30 and has a threaded hole 2801, and the threaded hole 28 The bottom openings of the suction barrel 30 are all provided with chamfers; the size of the threaded hole 2801 matches the size of the external threaded tube 36; a spring baffle is fixed near the middle of the circumferential inner wall of the external threaded tube 36, and a reset spring 37 is fixed to the top of the spring baffle, and a sealing cover block is fixed to the top of the reset spring 37, and the diameter of the sealing cover block is greater than or equal to the outer diameter of the external threaded tube 36; the circumferential inner wall of the suction barrel 30 is slidably connected to the piston plate 29, and a vertical tooth is fixed to the middle of the upper surface of the piston plate 29 The outer circumferential wall of the rack rod 31 is provided with right-angle teeth, and a screw cap 3001 is fixed at the top opening of the suction barrel 30, and an anti-torsion bearing 3002 matching the diameter of the rack rod 31 is embedded in the middle of the screw cap 3001; a fixing block 35 is fixed near the top of the inner wall of the main chamber 1, and the fixing block 35 is located above the adapter column head 6, a driving motor 34 is fixed on the surface of the fixing block 35, and a gear engaged with the rack rod 31 is fixed on the top of the output shaft of the driving motor 34 Intermittent gear 33; a counterweight block 3301 is fixed to the rear side of the intermittent gear 33 near the teeth; by setting the intermittent gear 33 with the counterweight block 3301, the drive motor 34 can be powered off when switching the position of the suction barrel 30. At this time, the smooth surface of the intermittent gear 33 without teeth faces one side of the rack rod 31, which is conducive to the rotation in and out of the rack rod 31. When the new rack rod 31 reaches the suction position, the drive motor 34 is started again, and it can be normally engaged and then suction is carried out.

[0044] Please refer to Figure 5 , Figure 9-10The outer wall of the rack rod 31 is reserved with an anti-twist groove running through the upper and lower ends, and the inner wall of the anti-twist bearing 3002 is provided with a convex block adapted to the anti-twist groove; the telescopic nozzle includes an outer sleeve 25 fixed to the inner wall of the bottom of the main cabin 1, and the top of the outer sleeve 25 is slidably sleeved with a round-headed nozzle 26, the top of the round-headed nozzle 26 is provided with a spherical head, and the circumferential outer wall of the round-headed nozzle 26 is fixed with three spring baffles symmetrically distributed near the top, and a compression spring 38 is fixed between the lower surface of the spring baffle and the top of the outer sleeve 25, and a vertical stepped injection hole 2601 is opened in the middle of the round-headed nozzle 26; the bottom end of the stepped injection hole 2601 is connected to the connecting hose 39; by providing a round-headed nozzle 26 with a spherical head, the threaded hole 2801 can be freely switched, and then different suction barrels 30 can be docked.

[0045] A method for surveying the location of deep-sea hydrothermal vents based on a submersible comprises the following steps:

[0046] S1: The main cabin 1 of the device is fixed to the outer wall of the head of the submersible through the connector 2, and then the fixing pipe 1 5 and the fixing pipe 2 7 of appropriate length are selected according to the depth of the area and the amount of seabed debris. If the seabed conditions are clear, a longer one can be selected; after ensuring that the inspection cabin 10 and the main cabin 1 and each sealing component are well sealed, the device can be launched into the water;

[0047] S2: When the submersible carries the device forward to search, the detection cabin 10 takes the lead and conducts inspections, cooperating with the camera 17 and the ribbon 15 in the detection cabin 10; during normal inspections, the ribbon 15 will extend backwards in waves as the submersible moves slowly forward. Once it approaches the hydrothermal vent, the water flow near the ribbon 15 becomes turbulent, which in turn drives the ribbon 15 to move irregularly; at this time, it is easier for the camera 17 to capture and distinguish;

[0048] At the same time, the second thermometer 22 arranged on the outer wall of the detection chamber 10 cooperates with the first thermometer 4 at the top of the device. During normal inspections, the temperature of the second thermometer 22 located deeper is lower than that of the first thermometer 4. Once a heat source is detected, not only will the temperature difference become smaller, but even the temperature of the second thermometer 22 at the bottom will be much higher than that of the first thermometer 4 at the top. At this time, the existence of a heat source can be verified from another aspect.

[0049] S3: Sampling can be carried out at this time. Before sampling, ensure that the threaded hole 2801 at the bottom of the empty suction barrel 30 is clamped on the top of the telescopic nozzle, and then start the servo motor 23 to make the pipe mouth of the closed arc-shaped suction tube 8 leave the rubber plug 9; then start the drive motor 34 to drive the piston plate 29 to operate for suction.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A deep-sea hydrothermal vent location survey device based on a submersible, comprising a main chamber (1) with an opening upwardly formed into an overall barrel-shaped structure, a connecting piece (2) being fixed between the outer wall of the main chamber (1) and the outer wall of the head of the submersible, and a transfer column head (6) being inserted into the side of the circumferential outer wall of the main chamber (1) away from the connecting piece (2), two fixed pipes 1 (5) and 2 (7) extending toward upper and lower positions respectively being fixed to the circumferential outer wall of the transfer column head (6), and a closed convex cover (3) being arranged at the top of the main chamber (1); It is characterized in that A first temperature detector (4) is fixed to the top of the fixed tube (5), and a detection chamber (10) is arranged at the bottom of the fixed tube (7); the detection chamber (10) is in the form of a trumpet-shaped structure with an opening facing downward, a concave pressure-resistant glass (16) recessed inwardly is sealed and embedded at the bottom opening of the detection chamber (10), and a camera (17) is fixed to the top inner wall of the detection chamber (10); an inclined sealing bearing (19) is embedded at the top of the detection chamber (10), and an arc-shaped sealing bearing (19) is slidably inserted into the sealing bearing (19) and bent toward the bottom edge of the detection chamber (10). The main chamber (1) is provided with a sampling device in the middle of the bottom of the main chamber (1), and the sampling device comprises a rotating support plate (28) rotatably connected to the bottom of the main chamber (1), and a plurality of suction buckets (30) distributed at equal distances are fixed on the top of the rotating support plate (28), and the suction buckets (30) are provided on the top of the rotating support plate (28). An externally threaded tube (36) passing through the rotating support plate (28) is arranged in the middle of the bottom of the main chamber (1), and a telescopic nozzle aligned with the bottom end of the externally threaded tube (36) is fixed near the circumferential edge of the bottom of the main chamber (1); and one end of the telescopic nozzle away from the externally threaded tube (36) is connected to the other end of the connecting hose (39); a connecting pipe frame for connecting the fixed pipe 2 (7) and the detection chamber (10) is fixed near the top edge of the circumferential outer wall of the detection chamber (10), and a strip for the pressure-resistant hose (21) to pass through is opened in the middle of the connecting pipe frame on the outer wall of the detection chamber (10). shaped through hole (1001); a fixed card block (11) is fixed near the bottom end of the circumferential outer wall of the detection chamber (10), and a second temperature measuring device (22) is embedded on the side of the fixed card block (11) away from the detection chamber (10); a cantilever rod (13) extending horizontally toward the middle of the concave pressure-resistant glass (16) is inserted at the bottom of the fixed card block (11), and a colored ribbon (15) is fixed at one end of the cantilever rod (13) away from the fixed card block (11), and the surface of the colored ribbon (15) is coated with waterproof fluorescent powder; the fixed card block (11) is located directly below the second fixed tube (7); Two mutually symmetrical sliding bearings (40) are fixed to the circumferential inner wall of the detection chamber (10), and a common long shaft rod (24) is rotatably connected between the two sliding bearings (40). A connecting rod (18) is fixed in the middle of the long shaft rod (24), and the other end of the connecting rod (18) is welded and fixed to an end of the outer wall of the arc-shaped suction pipe (8) close to the pressure-resistant hose (21); a rubber plug (9) is fixed to the side of the outer wall of the detection chamber (10) away from the fixed block (11). A cylindrical plug that matches the diameter of the pipe opening of the arc-shaped suction pipe (8) after rotation is fixed on the upper surface of the rubber plug (9); a worm gear (41) is fixed near the middle of the circumferential outer wall of the long shaft rod (24); a motor fixing hanger (1003) is fixed near the middle of the top of the detection cabin (10), and a servo motor (23) is fixed to the bottom end of the motor fixing hanger (1003) by bolts, and a worm sleeve that meshes with the worm gear (41) is fixed to the top end of the output shaft of the servo motor (23).

2. A deep-sea hydrothermal vent location survey device based on a submersible according to claim 1, It is characterized in that A mounting hole (14) is provided in the middle of the top of the detection chamber (10), and a pressure gauge (1002) is embedded in the mounting hole (14); and crisscross reinforcing ribs (12) are fixed to the lower surface of the main chamber (1).

3. A submersible-based deep-sea hydrothermal vent location survey device according to claim 2, It is characterized in that An annular groove is formed on the circumferential inner wall of the detection chamber (10) near the bottom opening, and a sealing ring is sleeved on the circumferential outer wall of the concave pressure-resistant glass (16), and the sealing ring is fixed in the annular groove.

4. A submersible-based deep-sea hydrothermal vent location survey device according to claim 3, It is characterized in that The sampling device also includes a reduction motor (27) fixed in the middle of the bottom of the main chamber (1), a three-claw spoke rod (32) is fixed at the top of the output shaft of the reduction motor (27), and the three-claw spoke rod (32) is an umbrella-shaped structure as a whole, and the three-claw spoke rod (32) includes three support rods distributed symmetrically in the center, and the ends of the support rods away from the motor shaft of the reduction motor (27) are fixed to the upper surface of the rotating support plate (28); the rotating support plate (28) is located in the middle of the bottom of each suction barrel (30) and a threaded hole (2801) is opened, and the bottom end of the threaded hole (2801) is chamfered; the size of the threaded hole (2801) is compatible with the size of the external threaded tube (36); a spring baffle is fixed near the middle of the circumferential inner wall of the external threaded tube (36), and a reset spring (37) is fixed at the top of the spring baffle, and a sealing cover block is fixed at the top of the reset spring (37), and the sealing The diameter of the cover block is greater than or equal to the outer diameter of the external threaded tube (36); the circumferential inner wall of the suction barrel (30) is slidably connected to a piston plate (29), and a vertical rack rod (31) is fixed to the middle of the upper surface of the piston plate (29), and the circumferential outer wall of the rack rod (31) is provided with right-angle teeth, and a rotary cover (3001) is fixed to the top opening of the suction barrel (30), and a gear matching the diameter of the rack rod (31) is embedded in the middle of the rotary cover (3001). an anti-torsion bearing (3002); a fixing block (35) is fixed near the top of the inner wall of the main chamber (1), and the fixing block (35) is located above the adapter column head (6); a driving motor (34) is fixed on the surface of the fixing block (35), and an intermittent gear (33) meshing with the rack rod (31) is fixed at the top of the output shaft of the driving motor (34); and a counterweight block (3301) is fixed near the teeth on the rear side of the intermittent gear (33).

5. A submersible-based deep-sea hydrothermal vent location survey device according to claim 4, It is characterized in that The outer wall of the rack rod (31) is reserved with an anti-twist groove that runs through the upper and lower ends, and the inner wall of the anti-twist bearing (3002) is provided with a convex block that matches the anti-twist groove; the telescopic nozzle comprises an outer sleeve (25) fixed to the inner wall of the bottom of the main chamber (1), and the top end of the outer sleeve (25) is slidably sleeved with a round-headed nozzle (26), the top end of the round-headed nozzle (26) is provided with a spherical head, and three spring retaining strips distributed symmetrically in the center are fixed to the circumferential outer wall of the round-headed nozzle (26) near the top end, and a compression spring (38) is fixed between the lower surface of the spring retaining strip and the top end of the outer sleeve (25), and a vertical stepped injection hole (2601) is opened in the middle of the round-headed nozzle (26); the bottom end of the stepped injection hole (2601) is connected to a connecting hose (39).

6. A method for surveying the location of a deep-sea hydrothermal vent based on a submersible, comprising the device for surveying the location of a deep-sea hydrothermal vent based on a submersible as claimed in claim 5, It is characterized in that The following steps are involved: S1: The main chamber (1) of the device is fixed to the outer wall of the head of the submersible through the connecting piece (2), and then the fixing pipe 1 (5) and the fixing pipe 2 (7) of appropriate length are selected according to the depth of the area and the amount of seabed debris. If the seabed conditions are relatively clear, a longer one can be selected; after ensuring that the inspection chamber (10) and the main chamber (1) and all sealing components are well sealed, the device can be launched into the water; S2: When the submersible carries the device forward to search, the detection cabin (10) takes the lead and conducts inspections, cooperating with the camera (17) and the ribbon (15) in the detection cabin (10); during the normal inspection process, the ribbon (15) will extend backward in waves as the submersible slowly moves forward. Once it approaches the hydrothermal vent, the water flow near the ribbon (15) becomes turbulent, which in turn causes the ribbon (15) to move irregularly; at this time, it is easier for the camera (17) to capture and distinguish. At the same time, the second thermometer (22) disposed on the outer wall of the detection chamber (10) cooperates with the first thermometer (4) at the top of the device. During normal inspections, the temperature of the second thermometer (22) located deeper is lower than that of the first thermometer (4). Once a heat source is detected, not only will the temperature difference become smaller, but the temperature of the second thermometer (22) located at the bottom will even be much higher than that of the first thermometer (4) at the top. At this time, the existence of a heat source can be verified from another aspect. S3: Sampling can be carried out at this time. Before sampling, ensure that the threaded hole (2801) at the bottom of the empty suction barrel (30) is clamped on the top of the telescopic nozzle, and then start the servo motor (23) to make the mouth of the closed arc-shaped suction tube (8) leave the rubber plug (9); then start the drive motor (34) to drive the piston plate (29) to operate for suction.

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