CN109269840B - Device for simultaneously collecting submarine sediment and ocean bottom water - Google Patents
Device for simultaneously collecting submarine sediment and ocean bottom water Download PDFInfo
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- CN109269840B CN109269840B CN201811459343.9A CN201811459343A CN109269840B CN 109269840 B CN109269840 B CN 109269840B CN 201811459343 A CN201811459343 A CN 201811459343A CN 109269840 B CN109269840 B CN 109269840B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
Abstract
The invention discloses a device for simultaneously collecting submarine sediments and marine bottom water, which comprises a sampling tube, a piston, and a balancing weight, a water taking tank and a balance wing which are arranged on the sampling tube; a plastic sleeve is arranged in the sampling tube and used for storing a submarine sediment sample; the piston is arranged in the plastic casing pipe and is connected with a cable, the cable extends out of the top of the sampling pipe, the piston is pulled to move upwards by pulling the cable, and a submarine sediment sample is extracted into the plastic casing pipe; get water tank's bottom and be provided with the automatic subassembly that opens and shuts, the automatic subassembly that opens and shuts is opened by sea water pressure in collection system sinks in the sea water and inserts the period of submarine sediment, gathers ocean bottom water to getting water tank, and closed during collection system come-up, seals up ocean bottom water sample. The collecting device integrates the functions of sampling the sediment at the bottom of the sea and sampling the water at the bottom of the sea, and can collect the water sample at the bottom of the sea which is 1-2 m away from the bottom of the sea.
Description
Technical Field
The invention belongs to the technical field of submarine sampling devices, and particularly relates to a sampling device for collecting submarine sediments and submarine bottom water.
Background
Currently, devices for seafloor geological sampling generally include gravity samplers and box samplers, and are based on column sampling. The gravity sampler is a common tool for sampling the seabed rock core, and the working principle of the gravity sampler is that gravitational potential energy is generated at a preset height, the gravitational potential energy is converted into kinetic energy after being released by a releaser, huge impact force is generated on the seabed rock stratum, and then the gravity sampler is inserted into the seabed rock stratum to sample the seabed rock core.
The gravity sampler has a single function, can only sample seabed geology, cannot simultaneously complete the sampling task of the bottom layer water of the sea, and needs to independently execute water taking operation by means of other special water taking devices. However, for a deep sea environment, it takes a long time to perform a sampling operation alone, for example, it generally takes 2.5 hours to collect a sample at a water depth of 1200 meters, and if a seabed sediment sampling and an ocean bottom water sampling are performed in sequence, the sampling time is too long, and the efficiency is low. Moreover, the existing water taking device is not suitable for a deep sea environment generally, is easily influenced by tide of over 500 meters in water depth, and can only suspend 10-15 m above the seabed, so that the water taking device is dared not to be continuously lowered, the task of collecting the ocean bottom water 1-2 m away from the seabed cannot be completed, and the application field is very limited.
Disclosure of Invention
The invention aims to provide a device for simultaneously collecting the submarine sediments and the ocean bottom water, which can simultaneously carry out the sampling operation of the submarine sediments and the ocean bottom water, has high sampling efficiency and is suitable for ocean environments with different depths.
In order to solve the technical problems, the invention adopts the following technical scheme:
a device for simultaneously collecting submarine sediments and submarine bottom water comprises a sampling tube, a piston, a balancing weight, a water taking tank, a balancing wing and a frame type base; a plastic sleeve is arranged in the sampling tube and used for storing a submarine sediment sample; the piston is arranged in the plastic casing pipe and is connected with a cable, the cable extends out of the top of the sampling pipe, the piston is pulled to move upwards by pulling the cable, and a submarine sediment sample is extracted into the plastic casing pipe; the sampling device comprises a sampling pipe, a water taking tank, an automatic opening and closing assembly and a control device, wherein the sampling pipe is arranged on the sampling pipe, the bottom of the water taking tank is provided with the automatic opening and closing assembly, the automatic opening and closing assembly is opened by seawater pressure during the period that the sampling pipe penetrates into seabed sediments, a sea bottom water sample is collected to the water taking tank, the automatic opening and closing assembly is closed during the floating period of the collecting device, and the sea bottom water sample is sealed and stored; the balancing weight is arranged on the sampling tube and is positioned below the water taking tank; the frame type base is hoisted below the balancing weight through a pull rope, the sampling tube penetrates through the frame type base, and a damping spring is arranged below the balancing weight; when the sampling tube is continuously injected and the frame type base is contacted with the damping spring, the damping spring prevents the frame type base from moving upwards to limit the injection depth of the sampling tube; the balance wing is arranged at the upper part of the sampling tube and used for keeping the balance of the collecting device during sinking in seawater.
Preferably, the frame-type base is preferably designed into a frame-type triangular platform structure, and comprises a triangular top frame and a triangular bottom frame, and the size of the top frame is smaller than that of the bottom frame; a circular tube is arranged between the triangular top frame and the triangular bottom frame, the inner diameter of the circular tube is larger than the outer diameter of the sampling tube, and the sampling tube penetrates through the circular tube; an outward turning check ring is formed on the top surface of the circular tube, the check ring is internally tangent and connected with the triangular top frame, and when the frame type base is moved to the position of the damping spring, the damping spring abuts against the check ring; the top surface and the bottom surface of the circular tube are respectively and correspondingly connected with the triangular top frame and the triangular bottom frame through the supports, and sufficient fixing strength is provided for the circular tube.
As a preferred structural design of the automatic opening and closing assembly, the automatic opening and closing assembly is internally provided with a sealing ring, an intermediate shaft, two bottom plates and a stop bolt; a through hole is formed in the bottom of the water taking tank, the intermediate shaft is fixedly installed on the water taking tank, and the through hole is divided into two halves; the sealing ring is arranged around the edge of the through hole; one part of the edges of the two bottom plates is hinged on the middle shaft, the other part of the edges is a free edge, and when the two bottom plates are positioned in a position parallel to the bottom of the water taking tank, the free edge is tightly attached to the sealing ring to seal and store a sea bottom layer water sample in the water taking tank; the stop bolt is arranged at the bottom of the water taking tank and spans the through hole to stop the two bottom plates from overturning towards the outer side of the water taking tank.
Preferably, the through hole is preferably formed in a circular shape, the intermediate shaft is arranged along the diameter direction of the through hole, the two bottom plates are preferably designed to be semicircular, straight edges of the two semicircular bottom plates are hinged to the intermediate shaft, semicircular arc edges of the two bottom plates are used as free edges, and when the two bottom plates are in a position parallel to the bottom of the water taking tank, the two bottom plates are tightly attached to the sealing ring to seal the water taking tank.
Preferably, the water taking tank is preferably designed into a circular column shape, and the sampling tube penetrates through an inner hole of the water taking tank; the automatic opening and closing assemblies are preferably three and are circumferentially distributed at the bottom of the water taking tank at equal intervals.
In order to conveniently take out the ocean bottom water sample in the water taking tank after the sampling device is salvaged ashore, the bottom of the water taking tank is preferably further provided with a water valve for discharging the ocean bottom water sample stored in the water taking tank after the collection device is recovered; the water valve is preferably set up threely the bottom of getting the water tank is equidistant circumference distribution, and each water valve is between its adjacent two intermediate positions that open and shut the subassembly automatically, makes collection system place the back at the level, and whatever angle of keeping flat can both conveniently be operated the water valve and discharge the ocean bottom water sample of preserving in the water tank.
In order to conveniently and completely discharge the ocean bottom layer water samples stored in the water taking tank, the installation position of each water valve on the water taking tank is preferably tangent to the outer edge of the bottom of the water taking tank, so that the ocean bottom layer water samples in the water taking tank can be smoothly and completely discharged even if the collecting device is horizontally placed.
Further, a baffle is provided in the sampling tube for limiting the upward movement position of the plunger in the plastic sleeve.
In order to facilitate the sampling tube to be inserted into the submarine sediment, the bottom of the sampling tube is also provided with a knife edge, the knife edge is in a hollow inverted truncated cone shape, the hollow part is cylindrical, and the diameter of the hollow part is equal to the inner diameter of the plastic sleeve, so that columnar sampling of the submarine sediment is realized.
In order to facilitate the assembly and fixation of the balancing weight, the water taking tank and the balance wing on the sampling tube, the invention forms external threads on the outer wall of the sampling tube, and threaded steel blocks are respectively arranged on the balancing weight, the water taking tank and the balance wing, and the balancing weight, the water taking tank and the balance wing are in threaded connection with the sampling tube through the threaded steel blocks.
In order to facilitate the arrangement and fishing of the collecting device, the top of the sampling tube is also provided with a lifting head.
Compared with the prior art, the invention has the advantages and positive effects that: the collecting device integrates the functions of sampling seabed sediments and sampling seabed water, can complete two seabed sample sampling tasks at the same time by one-time putting, and effectively saves sampling time and labor cost. In addition, the sampling device can sample ocean bottom water which is 1-2 m away from the ocean bottom, is simple in structure and convenient to operate, greatly improves the efficiency of ocean bottom exploration, is not easily damaged by deep ocean tide, is suitable for being applied to seawater at different depths, and expands the application field of the sampling device.
Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the overall structure of an embodiment of the device for simultaneously collecting sediment and water from the bottom of the sea according to the present invention;
FIG. 2 is a partial cross-sectional view of one embodiment of the coupon of FIG. 1;
fig. 3 is a schematic structural view of an embodiment of the bottom of the water extraction tank in fig. 1.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1 and fig. 2, the device for simultaneously collecting the sediment at the sea bottom and the water at the ocean bottom of the present embodiment mainly comprises a sampling tube 1, a water taking tank 6, a balancing weight 8, a balancing wing 9, a frame-type base 21, and the like. Among them, the sampling tube 1 is preferably made of a high-strength metal material to withstand the pressure of seawater in a deep sea environment. The sampling tube 1 is internally provided with a plastic sleeve 2, such as a PVC (polyvinyl chloride) tube, which is attached to the inner wall of the sampling tube 1 and used for storing collected submarine sediment samples. A piston 3 is arranged in a plastic sleeve 2, a cable 11 is connected to the upper part of the piston 3, the cable 11 penetrates out of the top of the sampling tube 1, the piston 3 can be controlled to move upwards by lifting the cable 11, air in the plastic sleeve 2 is pumped out to form negative pressure, and then seabed sediments automatically enter the plastic sleeve 2 to form a columnar sample.
In the present embodiment, it is preferable to design the sampling tube 1 as a straight tube with an inner diameter of 110mm and a wall thickness of 8mm, and to provide the baffle 5 in the sampling tube 1, and to limit the upward moving distance of the piston 3 by the baffle 5, so as to limit the sampling amount of the seabed sediment.
The sampling tube is characterized in that a water taking tank 6, a balancing weight 8 and a balance wing 9 are installed on the outer wall of the sampling tube 1, as an optimal installation mode, external threads can be arranged on the outer wall of the sampling tube 1, threaded steel blocks 7 with internal threads are installed on the water taking tank 6, the balancing weight 8 and the balance wing 9 respectively, and the water taking tank 6, the balancing weight 8 and the balance wing 9 are assembled on the sampling tube 1 in a threaded connection mode.
Wherein, balancing weight 8 is used for increasing collection system's whole weight, can suitably adjust balancing weight 8's use quantity according to the sea water degree of depth of puting in the sea area, makes collection system can overcome sea water buoyancy under the action of self gravity, penetrates smoothly in the submarine sediment.
The balance wing 9 is used for keeping balance of the collecting device during sinking in seawater, and is preferably arranged at the upper part of the sampling tube 1 and made of iron sheets. In the embodiment, preferably, three balance wings 9 are installed at the same height of the sampling tube 1, and two adjacent balance wings 9 are configured to form an included angle of 120 ° therebetween, so as to further enhance the balance of the collecting device.
The water taking tank 6 is used for storing a sea bottom water sample, is preferably arranged on the sampling tube 1 and is arranged at a position between the balance wing 9 and the balancing weight 8, as shown in fig. 2, and is preferably 1.5 m-2.5 m away from the bottom end of the sampling tube 1, so that the collection of the sea bottom water 1 m-2 m away from the sea bottom is realized.
In this embodiment, the water sampling tank 6 is preferably designed into a ring-shaped cylindrical shape, and the diameter of the inner hole 12 can be designed into 120mm, as shown in fig. 3, for the sampling tube 1 to pass through. The outer diameter of the water taking tank 6 can be configured to be 600mm, and the wall thickness is 8mm, so that a large enough storage space is provided for collecting enough ocean bottom layer water samples.
The bottom of the water taking tank 6 is provided with a through hole, and an automatic opening and closing assembly 13 is installed in the through hole, as shown in fig. 3. When the collection device sinks in the sea and during the period of time when the sampling tube 1 is inserted into the seabed sediment, the automatic opening and closing assembly 13 can be automatically opened under the pressure of the sea to collect the water from the seabed to the water intake box 6. During collection system retrieves and floats in the sea water, automatic subassembly 13 that opens and shuts can be closed, and the through-hole of water tank 6 bottom is got in the shutoff, and the ocean bottom water sample that will gather seals up and deposits in getting water tank 6, accomplishes the sample task of ocean bottom water.
As a preferable design of this embodiment, it is preferable that the bottom of the water taking box 6 is provided with three circular through holes, and as shown in fig. 3, the circular through holes are circumferentially distributed around the bottom of the water taking box 6 at equal intervals, that is, an included angle of 120 ° is formed between two adjacent circular through holes. An automatic opening and closing assembly 13 is respectively arranged in each circular through hole so as to ensure the stability of the collecting device during sinking in seawater.
Each automatic opening and closing assembly 13 comprises an intermediate shaft 14, a sealing ring 15, a stop bolt 18 and two bottom plates 16 and 17. The middle shaft 14 is connected with the bottom wall of the water taking tank 6, traverses the circular through hole and is distributed along the diameter of the circular through hole, and the circular through hole is divided into two parts with equal areas. The two base plates 16, 17 are preferably designed in a semicircular shape, the straight edges of the two base plates 16, 17 being hinged to the intermediate shaft 14, the semicircular arc edges forming free edges, so that the two base plates 16, 17 can rotate relative to the intermediate shaft 14. The sealing ring 15 is arranged at the edge of the circular through hole, when the two bottom plates 16 and 17 rotate to the position parallel to the bottom wall of the water taking tank 6, the two bottom plates 16 and 17 are just tightly attached to the sealing ring 15, and the circular through hole is blocked. The stop bolt 18 is installed below the bottom wall of the water taking tank 6, one end of the stop bolt can be fixed, and the other end of the stop bolt is movably connected with the bottom wall of the water taking tank 6 to limit the rotating direction of the two bottom plates 16 and 17, so that the two bottom plates 16 and 17 can only be turned towards the inner side of the water taking tank 6 but not towards the outer side of the water taking tank 6.
Of course, the through hole and the two bottom plates 16 and 17 may be designed in other shapes, such as rectangle, ellipse, etc., only a part of the edges of the two bottom plates 16 and 17 is hinged on the middle shaft 14, and the rest forms a free edge, and when the two bottom plates 16 and 17 rotate to a position parallel to the bottom wall of the water taking tank 6, the free edges of the two bottom plates 16 and 17 can be tightly attached to the sealing ring 15 installed on the edge of the through hole.
In this embodiment, the two bottom plates 16, 17 are preferably made of a light polymeric material to ensure that they can be freely opened and closed under the pressure of seawater.
A water valve 19 is further installed at the bottom of the water intake box 6, as shown in fig. 3, for discharging the ocean bottom water sealed in the water intake box 6 after the collection device is fished ashore. As a preferred design of this embodiment, the number of the water valves 19 is preferably three, and the water valves 19 are circumferentially distributed at equal intervals at the bottom of the water taking tank 6, that is, an included angle of 120 ° is formed between two adjacent water valves 19, and each water valve 16 is preferably located at a middle position of two adjacent automatic opening and closing assemblies 13, so that it can be ensured that one water valve 19 faces downward after the collecting device is fished ashore, and no matter how horizontally placed, so as to conveniently discharge the ocean bottom water sample stored in the water taking tank 6. In addition, the present embodiment preferably arranges the mounting position of each water valve 19 on the intake water tank 6 to be tangential to the outer edge of the bottom of the intake water tank 6, thereby ensuring that the ocean bottom water sample in the intake water tank 6 is completely discharged.
Considering that the penetration posture of the current sampler cannot be controlled, when the sampling tube is obliquely inserted into the seabed sediment and the inclination angle is large, the sampling tube cannot take a sample. In order to solve the problem, in the embodiment, a frame-type base 21 is additionally arranged on the sampling tube 1, as shown in fig. 1, the frame-type base 21 is used for adjusting the penetration angle of the sampling tube 1 in the submarine sediment, so that the sampling tube 1 can be vertically inserted into the seabed, and the effective sampling of the submarine sediment sample is ensured.
As a preferred structural design of the frame-type base 21, the frame-type base 21 is preferably designed to be a frame-type three-edged platform structure, as shown in fig. 1, including a triangular top frame 22 and a triangular bottom frame 23, and the size of the top frame is smaller than that of the bottom frame, so as to improve the stability of the frame-type base 21 for supporting the sampling device. A round tube 24 is arranged between the triangular top frame 22 and the triangular bottom frame 23, and the inner diameter of the round tube 24 is designed to be larger than the outer diameter of the sampling tube 1, so that the sampling tube 1 passes through the round tube 24 and extends out of the round tube 24 to extend to the lower part far away from the triangular bottom frame 23. An outward turning retainer ring 25 is designed on the top surface of the round tube 24, and the retainer ring 25 is internally tangent with the triangular top frame 22 and is fixedly connected at the tangent point position. A plurality of brackets 26 are respectively connected between the top surface of the circular tube 24 and the triangular top frame 22 and between the bottom surface of the circular tube 24 and the triangular bottom frame 23 to improve the fixing strength of the circular tube 24 on the frame type base 21.
The pull rope 27 is installed on the frame type base 21, the frame type base 21 is hung below the balancing weight 8 through the pull rope 27, specifically, the pull rope 27 can be fixed on the bottom surface of the balancing weight 8, the damping spring 28 is installed on the bottom surface of the balancing weight 8, and the penetration depth of the sampling tube 1 in the seabed sediment is limited through the damping spring 28.
In addition, a lifting head 10 may be further installed on the top of the sampling tube 1, as shown in fig. 2, to facilitate the deployment and fishing of the sampling device. A knife edge 4 can be further arranged at the bottom end of the sampling tube 1 to enhance the penetration force of the sampling tube 1 on the seabed sediment. In the present exemplary embodiment, the cutting edge 4 is preferably designed in the form of a hollow, rounded truncated cone, and the hollow section 20 is designed in the form of a cylinder. The diameter of the cylindrical hollow part 20 is designed to be equal to the inner diameter of the plastic casing 2, so that the submarine sediments sucked into the plastic casing 2 can be in a column shape, and columnar sampling of the submarine sediments is realized.
A plurality of lotus petal-shaped steel sheets (not shown in the figure) can be arranged in the knife edge 4, and before the knife edge 4 is inserted into the seabed sediment, the lotus petal-shaped steel sheets are in a horizontal closed state; when entering the soil body, the lotus petal-shaped steel sheets are squeezed open by the submarine sediments, so that the submarine sediments can smoothly enter; when the knife edge 4 is lifted from the submarine sediment, the lotus petal-shaped steel sheet is restored to the horizontal closed state, so that the purpose of closing the knife edge 4 to prevent the collected submarine sediment sample from leaking is achieved.
The working principle of the collecting device of the present embodiment is explained below with reference to fig. 1 to 3 as follows:
after the scientific investigation ship-borne collection device reaches the arrangement position of the sea area to be detected, the lifting head 10 of the collection device is lifted by using a ship-borne steel cable to be transferred to the sea surface, the unhooking device is controlled to be separated, and the collection device is put into the sea.
The collecting device sinks under the gravity of the collecting device and the balancing weight 8 after entering the sea, and when the collecting device reaches the seabed, the knife edge 4 penetrates through the seabed sediments, so that the sampling tube 1 penetrates into the seabed sediments.
In the process of injecting the sampling tube 1 into the seabed sediment, when the sampling tube 1 reaches a certain injection depth, the frame-type base 21 is located on the seabed, and the injection posture of the sampling tube 1 is adjusted to be vertical to the surface layer of the seabed sediment. If the sampling tube 1 continues to penetrate, the frame-type base 21 moves upward relative to the sampling tube 1 and approaches the counterweight block 8. When the frame-type base 21 moves up to be adjacent to the balancing weight 8, the damping spring 28 arranged below the balancing weight 8 is abutted against the check ring 25 on the top surface of the circular tube 24, the penetration force of the sampling tube 1 is buffered until the penetration is stopped, and then the effect of limiting the penetration depth of the sampling tube 1 is achieved.
When the sampling tube 1 is stably erected on the seabed sediment, the cable 11 is pulled up, and the control piston 3 moves up until contacting the baffle 5 and stops. At this time, negative pressure is generated in the plastic casing 2, and seabed sediments are forced to enter the plastic casing 2 under the action of the negative pressure, so that columnar sampling is realized.
During the period of collecting the submarine sediment sample, the two bottom plates 16 and 17 in the automatic opening and closing assembly 13 are turned upwards under the pressure of the submarine bottom water, the through hole is opened, the submarine bottom water is poured into the water taking tank 6 through the through hole, and the sampling of the submarine bottom water is realized.
After sampling, the collection device is recovered through the pull-up cable 11. During the process of the collection device rising, the two bottom plates 16 and 17 in the automatic opening and closing assembly 13 are influenced by the water flow in the water taking tank 6 to turn downwards until the two bottom plates 16 and 17 are blocked by the stop bolt 18 to stop rotating. At the moment, the two bottom plates 16 and 17 are spliced with each other and tightly attached to the sealing ring 15 at the edge of the through hole, so that the through hole is blocked, and the collected ocean bottom water can be sealed in the water taking tank 6.
After the collection device is salvaged ashore, the collection device is laid flat, a water valve 19 with a downward position is selected to be opened, and the ocean bottom water sample stored in the water intake box 6 is transferred to a suitable test container. The samples of seafloor sediments stored in the plastic casing 2 are transferred to suitable vessels by means of a foreign object pushing down the piston 3 for later laboratory studies.
Therefore, double synchronous acquisition tasks of the seabed sediments and the bottom layer water of the ocean are completed, and sampling time and labor cost are saved.
In the embodiment, the frame-type base 21 is additionally arranged on the sampling tube 1, so that the sampling tube 1 can be vertically inserted into a seabed, the sampling success rate of seabed sediments is ensured, and the influence of deep sea ocean currents on a sampling device is overcome. By additionally arranging the damping spring 28 at the lower part of the balancing weight 8, the inertia force of the sampling tube 1 can be reduced, the maximum sampling depth can be controlled, the impact force of the sampling tube 1 and the frame type base 21 can be reduced, the problems of water sample turbidity, water quality deterioration and the like caused by the fact that the balancing weight 8 penetrates into a seabed are avoided, and the sampling quality of the ocean bottom water is effectively ensured.
Of course, the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A device for simultaneously collecting seafloor sediment and ocean bottom water, comprising:
the sampling tube is internally provided with a plastic sleeve and is used for preserving a submarine sediment sample;
the piston is arranged in the plastic casing pipe, is connected with a cable, extends out of the top of the sampling pipe, and pulls the piston to move upwards by pulling the cable so as to extract a submarine sediment sample into the plastic casing pipe;
the automatic opening and closing assembly is opened under the pressure of seawater during the period that the sampling pipe penetrates into the submarine sediment, collects a sea bottom layer water sample to the water taking tank, is closed during the floating period of the collecting device, and seals the sea bottom layer water sample;
the balancing weight is arranged on the sampling tube and is positioned below the water taking tank;
the sampling tube penetrates through the frame type base, and a damping spring is arranged below the balancing weight; when the sampling tube is continuously injected and the frame type base is contacted with the damping spring, the damping spring prevents the frame type base from moving upwards to limit the injection depth of the sampling tube;
and the balance wing is arranged at the upper part of the sampling pipe and is used for keeping the balance of the collection device during sinking in seawater.
2. The device for simultaneously collecting seafloor sediment and ocean bottom water as claimed in claim 1, wherein the frame-type base is of a frame-type three-edged platform structure comprising a triangular top frame and a triangular bottom frame, and the size of the top frame is smaller than that of the bottom frame; a circular tube is arranged between the triangular top frame and the triangular bottom frame, the inner diameter of the circular tube is larger than the outer diameter of the sampling tube, and the sampling tube penetrates through the circular tube; an outward turning check ring is formed on the top surface of the circular tube, the check ring is internally tangent and connected with the triangular top frame, and when the frame type base is moved to the position of the damping spring, the damping spring abuts against the check ring; the top surface and the bottom surface of the circular tube are correspondingly connected with the triangular top frame and the triangular bottom frame through the brackets respectively.
3. The device for simultaneously collecting seafloor sediment and ocean bottom water of claim 1, wherein the automatic opening and closing assembly comprises a sealing ring, an intermediate shaft, two bottom plates and a stop bolt; the bottom of the water taking tank is provided with a through hole, the intermediate shaft is fixed on the water taking tank and divides the through hole into two parts; the sealing ring is arranged around the edge of the through hole; one part of the edges of the two bottom plates is hinged on the middle shaft, the other part of the edges is a free edge, and when the two bottom plates are positioned in a position parallel to the bottom of the water taking tank, the free edge is tightly attached to the sealing ring to seal and store a sea bottom layer water sample in the water taking tank; the stop bolt is arranged at the bottom of the water taking tank and spans the through hole to stop the two bottom plates from overturning towards the outer side of the water taking tank.
4. The device for simultaneously collecting seafloor sediment and ocean bottom water as claimed in claim 3, wherein the through hole is circular, the middle shaft is arranged along the diameter of the through hole, the two bottom plates are semicircular, the straight edges of the two semicircular bottom plates are hinged on the middle shaft, and the semicircular arc edges are the free edges.
5. The device for simultaneously collecting seafloor sediment and ocean bottom water as claimed in claim 4, wherein the water taking tank is cylindrical, and the sampling tube passes through an inner hole of the water taking tank; the automatic opening and closing assemblies comprise three automatic opening and closing assemblies, and the automatic opening and closing assemblies are distributed at the bottom of the water taking tank at equal intervals in a circumferential mode.
6. The device for simultaneously collecting seafloor sediment and ocean bottom water as claimed in claim 5, wherein a water valve is further installed at the bottom of the water taking tank for discharging the ocean bottom water sample stored in the water taking tank after the collection device is recovered; the water taking tank is provided with three water valves, the three water valves are circumferentially distributed at equal intervals at the bottom of the water taking tank, and each water valve is arranged in the middle of two adjacent automatic opening and closing assemblies.
7. The device for simultaneously collecting seafloor sediment and ocean bottom water of claim 6, wherein the mounting position of each water valve on the water intake box is tangent to the outer edge of the bottom of the water intake box.
8. The simultaneous seafloor sediment and ocean bottom water collection device of any one of claims 1 to 7, wherein a stop is provided in the sampling tube to limit the upward travel position of the piston in the plastic sleeve; the top of the sampling tube is provided with a lifting head.
9. The device for simultaneously collecting seafloor sediments and ocean bottom water as claimed in any one of claims 1 to 7, wherein a knife edge is installed at the bottom of the sampling tube, the knife edge is in the shape of a hollow inverted truncated cone, the hollow part is cylindrical, and the diameter of the hollow part is equal to the inner diameter of the plastic sleeve.
10. The device for simultaneously collecting seafloor sediment and ocean bottom water as claimed in any one of claims 1 to 7, wherein an external thread is formed on the outer wall of the sampling tube, threaded steel blocks are mounted on the counter weight, the water taking tank and the balance wing, and the counter weight, the water taking tank and the balance wing are in threaded connection with the sampling tube through the threaded steel blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811459343.9A CN109269840B (en) | 2018-11-30 | 2018-11-30 | Device for simultaneously collecting submarine sediment and ocean bottom water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811459343.9A CN109269840B (en) | 2018-11-30 | 2018-11-30 | Device for simultaneously collecting submarine sediment and ocean bottom water |
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| CN109269840A CN109269840A (en) | 2019-01-25 |
| CN109269840B true CN109269840B (en) | 2020-09-04 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202351078U (en) * | 2011-11-17 | 2012-07-25 | 中国科学院海洋研究所 | Visual controllable ultra-long gravity piston sampling system for deep water |
| CN103728156A (en) * | 2013-12-06 | 2014-04-16 | 北京工业大学 | Deep sea water collector utilizing sea bed pressure difference |
| CN205038071U (en) * | 2015-09-15 | 2016-02-17 | 常州市环境科学研究院 | Water sample, dual -purpose collector of bed mud |
| CN105547752A (en) * | 2016-01-06 | 2016-05-04 | 国家海洋局第二海洋研究所 | Oceanographic survey sampling device and method |
| CN105547737A (en) * | 2016-01-27 | 2016-05-04 | 邓琦 | Deep sea diving sampling device and implementation method thereof |
| CN105628442A (en) * | 2016-01-27 | 2016-06-01 | 邓琦 | Sea sampling technique equipment and implementation method thereof |
| CN207570842U (en) * | 2017-11-30 | 2018-07-03 | 海南梵思科技有限公司 | A kind of sea floor sampling and experiment sampling box |
| KR20180089185A (en) * | 2017-01-31 | 2018-08-08 | 유한회사 해양생태과학기술 | Portable gravity corer |
| CN207798442U (en) * | 2017-12-15 | 2018-08-31 | 国家海洋局第一海洋研究所 | A kind of accurate gravity piston sampler for measuring depth of penetration and gradient |
| CN209182091U (en) * | 2018-11-30 | 2019-07-30 | 中国海洋大学 | Bottom sediment and Bottom Water in Ocean while acquisition device |
-
2018
- 2018-11-30 CN CN201811459343.9A patent/CN109269840B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202351078U (en) * | 2011-11-17 | 2012-07-25 | 中国科学院海洋研究所 | Visual controllable ultra-long gravity piston sampling system for deep water |
| CN103728156A (en) * | 2013-12-06 | 2014-04-16 | 北京工业大学 | Deep sea water collector utilizing sea bed pressure difference |
| CN205038071U (en) * | 2015-09-15 | 2016-02-17 | 常州市环境科学研究院 | Water sample, dual -purpose collector of bed mud |
| CN105547752A (en) * | 2016-01-06 | 2016-05-04 | 国家海洋局第二海洋研究所 | Oceanographic survey sampling device and method |
| CN105547737A (en) * | 2016-01-27 | 2016-05-04 | 邓琦 | Deep sea diving sampling device and implementation method thereof |
| CN105628442A (en) * | 2016-01-27 | 2016-06-01 | 邓琦 | Sea sampling technique equipment and implementation method thereof |
| KR20180089185A (en) * | 2017-01-31 | 2018-08-08 | 유한회사 해양생태과학기술 | Portable gravity corer |
| CN207570842U (en) * | 2017-11-30 | 2018-07-03 | 海南梵思科技有限公司 | A kind of sea floor sampling and experiment sampling box |
| CN207798442U (en) * | 2017-12-15 | 2018-08-31 | 国家海洋局第一海洋研究所 | A kind of accurate gravity piston sampler for measuring depth of penetration and gradient |
| CN209182091U (en) * | 2018-11-30 | 2019-07-30 | 中国海洋大学 | Bottom sediment and Bottom Water in Ocean while acquisition device |
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